A mortar for launching fireworks is activated by a spring. The spring provides an impulse force...
A mortar for launching fireworks is activated by a spring. The spring provides an impulse force of 1700 lb for a duration of 0.008 seconds. Ignoring the effect of gravity, what is the launch velocity of the 10 lb payload?
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A mortar for launching fireworks is activated by a spring. The
spring provides an impulse force...
A spring with a stiffness of 0.81 lb/in starts at its neutral position and is pulled...
A spring with a stiffness of 0.81 lb/in starts at its neutral position and is pulled back 4.0 inches. The spring is 598inch/s released to launch a 0.30 lb ball. All Format Check motion is along the horizontal direction and 8% of the initial elastic . sing potential energy is lost during the launch. Determine the launch speed of the ball (include units with answer) 9.4 pts,94% | 2% try penalty # tries: 3 | Show Details first value as...
2. An 8 lb object stretches a spring 1/2 ft by itself when there is no damper attached. Then, a damper is attached to it that will exert a force of 12 lbs when the velocity is 2 ft/s. Is this...
2. An 8 lb object stretches a spring 1/2 ft by itself when there is no damper attached. Then, a damper is attached to it that will exert a force of 12 lbs when the velocity is 2 ft/s. Is this system over- damped, under-damped, or critically damped? (6 points) a) b) Find the displacement at any time t, u(t). (6 points) c) Sketch of the displacement of the mass for the first 10 seconds. (4 points) d) Discuss the...
A ballistic pendulum involves a spring-powered launcher which fires a small steel ball of mass 0.05...
A ballistic pendulum involves a spring-powered launcher which fires a small steel ball of mass 0.05 kg over a distance of 0.1 m with velocity 10 m/s into a pendulum of mass 0.2 kg.0.5 seconds pass between the launch of the ball and its inellastic collision with the pendulum. What force does the ball have when it strikes the pendulum? What force does the pendulum exert on the ball at the moment of impact? How much work is done by...
A mass weighing 4 pounds is attached to a spring whase constant is 2 b/ft. The medium offers a damping force that is numerically equal to the instantaneous velocity. The mass is initially released fr...
A mass weighing 4 pounds is attached to a spring whase constant is 2 b/ft. The medium offers a damping force that is numerically equal to the instantaneous velocity. The mass is initially released from a point 1 foot above the equilbrium position with a downward velocity of 10 ft/s. Determine the time at which the mass passes through the equilibrium position. (Use g 32 ft/s2 for the acceleration due to gravity.) Find the time after the mass passes through...
Analysis of Collisions - Impulse & Momentum Lab Name Group# Course/Section Instructor Table, Mass of Dynamics...
Analysis of Collisions - Impulse & Momentum Lab Name Group# Course/Section Instructor Table, Mass of Dynamics Cart 0.50193 kg Thick Spring Thin Spring Rubber Bumper 0.684 m/s Vi 0.643 m/s 0.647 m/s mvi 0.3433 kg m/s -0.400 m/s 0.3227 kg m/s -0.533 m/s Vf 0.3247 kg/s -0.626 m/s -0.3142 kg m/s 0.6389 kg m/s mvf -0.2007 kg m/s -0.544 kg m/s -0.2675 kg m/s 0.5902 kg m/s p 0.524 Ns 0.612 Ns 0.678 Ns 2.294 s 1.962 s 1.842 s...
Impulse and Momentum Name: Date: TA's Name: Learning Objectives: 1. Understanding force ys time curves for...
Impulse and Momentum Name: Date: TA's Name: Learning Objectives: 1. Understanding force ys time curves for a collision. 2. Calculating impulse using force vs. time curves. 3. Understanding the relationship between impulse and momentum. 4. Applying conservation of momentum for inelastic collisions. Apparatus: Aluminum track, track legs, two smart carts, two cart stops, and small black rectangular cart masses. Part A: Collision of a moving cart with a fixed cart cart 1 Cart stop stationary cart cart stop Consider the...
THE EXPERIMENT The speed "." of a ball as it leaves the spring gun will be...
THE EXPERIMENT The speed "." of a ball as it leaves the spring gun will be measured by projecting the ball horizontally (0-0) from a table top at a distance H above the floor. The gun is then elevated at a known angle 8. The position of the target is calculated using the measured value of v. calculated time of flight, and the equations of motion. A successful prediction with the projectile hitting the target means that the following concepts...
Suppose that a car weighing 4000 pounds is supported by four shock absorbers Each shock absorber has a spring constant of 6500 lbs/foot, so the effective spring constant for the system of 4 shock ab...
1. Suppose that a car weighing 4000 pounds is supported by four shock absorbers Each shock absorber has a spring constant of 6500 lbs/foot, so the effective spring constant for the system of 4 shock absorbers is 26000 lbs/foot.1. Assume no damping and determine the period of oscillation of the vertical motion of the car. Hint: g= 32 ft/sec22. After 10 seconds the car body is 1 foot above its equilibrium position and at the high point in its cycle....
1. John (who is 95 kg) drives his car over an absurdly large half-circle speedbump with...
1. John (who is 95 kg) drives his car over an absurdly large half-circle speedbump with a radius of 5 meters. Given that his normal weight is 930 N and his apparent weight at the top of the speed-bump was 246 N, how fast did he drive over the speed bump? 2. When working in circular motion problems, what do we define as always being the positive direction? 3. When in circular motion, the net force points in what direction?...
Introduction Many doors in public places are fitted with simple and inexpensive mechanisms that are designed...
Introduction Many doors in public places are fitted with simple and inexpensive mechanisms that are designed to close the doors while reducing the slamming force to a minimum. Figure 1 Figure 1 depicts one such mechanism while Figure 2 provides a schematic description. The spring is mounted in order to push the door back to close once it is opened. The role of the hydraulic dashpot is to provide a viscous force that will prevent the door from slamming against...
A spring with a stiffness of 0.81 lb/in starts at its neutral position and is pulled back 4.0 inches. The spring is 598inch/s released to launch a 0.30 lb ball. All Format Check motion is along the horizontal direction and 8% of the initial elastic . sing potential energy is lost during the launch. Determine the launch speed of the ball (include units with answer) 9.4 pts,94% | 2% try penalty # tries: 3 | Show Details first value as...
2. An 8 lb object stretches a spring 1/2 ft by itself when there is no damper attached. Then, a damper is attached to it that will exert a force of 12 lbs when the velocity is 2 ft/s. Is this system over- damped, under-damped, or critically damped? (6 points) a) b) Find the displacement at any time t, u(t). (6 points) c) Sketch of the displacement of the mass for the first 10 seconds. (4 points) d) Discuss the...
A mass weighing 4 pounds is attached to a spring whase constant is 2 b/ft. The medium offers a damping force that is numerically equal to the instantaneous velocity. The mass is initially released from a point 1 foot above the equilbrium position with a downward velocity of 10 ft/s. Determine the time at which the mass passes through the equilibrium position. (Use g 32 ft/s2 for the acceleration due to gravity.) Find the time after the mass passes through...
Analysis of Collisions - Impulse & Momentum Lab Name Group# Course/Section Instructor Table, Mass of Dynamics Cart 0.50193 kg Thick Spring Thin Spring Rubber Bumper 0.684 m/s Vi 0.643 m/s 0.647 m/s mvi 0.3433 kg m/s -0.400 m/s 0.3227 kg m/s -0.533 m/s Vf 0.3247 kg/s -0.626 m/s -0.3142 kg m/s 0.6389 kg m/s mvf -0.2007 kg m/s -0.544 kg m/s -0.2675 kg m/s 0.5902 kg m/s p 0.524 Ns 0.612 Ns 0.678 Ns 2.294 s 1.962 s 1.842 s...
Impulse and Momentum Name: Date: TA's Name: Learning Objectives: 1. Understanding force ys time curves for a collision. 2. Calculating impulse using force vs. time curves. 3. Understanding the relationship between impulse and momentum. 4. Applying conservation of momentum for inelastic collisions. Apparatus: Aluminum track, track legs, two smart carts, two cart stops, and small black rectangular cart masses. Part A: Collision of a moving cart with a fixed cart cart 1 Cart stop stationary cart cart stop Consider the...
THE EXPERIMENT The speed "." of a ball as it leaves the spring gun will be measured by projecting the ball horizontally (0-0) from a table top at a distance H above the floor. The gun is then elevated at a known angle 8. The position of the target is calculated using the measured value of v. calculated time of flight, and the equations of motion. A successful prediction with the projectile hitting the target means that the following concepts...
Introduction Many doors in public places are fitted with simple and inexpensive mechanisms that are designed to close the doors while reducing the slamming force to a minimum. Figure 1 Figure 1 depicts one such mechanism while Figure 2 provides a schematic description. The spring is mounted in order to push the door back to close once it is opened. The role of the hydraulic dashpot is to provide a viscous force that will prevent the door from slamming against...
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