A 425 HP motor moves a race car with constant speed down a track. Most of...
A 425 HP motor moves a race car with constant speed down a track. Most of the power is to overcome friction from the road and air.
A) Calculate the amount of exertion force acting on the car when it is moving at 29.0 m/s and utilizing 70% of its power to overcome frictional forces.
The answer is given as 7653N but I cannot seem to come up with that answer.
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A 425 HP motor moves a race car with constant speed down a
track. Most of...
on Cannot figure out part B in number 1, number 4 at all, and part C...
on
Cannot figure out part B in number 1, number 4 at all, and part
C in number 6. Please help!!!!
1. A dock worker pushes a 250.0 kg crate for 200.0 meters with an acceleration of 1.50 m/s'. The angl is 20.0 degrees below horizontal fritional force is 75.0 N against the crate, what energy is lost to friction? horizontal. a) How much work has gone into pushing the cart for that distance? b) If the 11500 |J |...
Total: 20 pts) A car is braking hard. There are two significant resistive forces acting on...
Total: 20 pts) A car is braking hard. There are two significant resistive forces acting on it, a quadratic (cv2) air drag, and a constant (umg) frictional force. If you are interested in finding v(x) (rather than v(t)), there is a commonly used method known as the "v dv/dx rule”, which uses the chain rule to rewrite ü = = di = v . a) [12 pts) Write down the equation of motion for Ü = (v) and use the...
Problem 1: A car of mass 1000 kg moves at a constant speed of 20 m/s...
Problem 1: A car of mass 1000 kg moves at a constant speed of 20 m/s along a horizontal road where a frictional force is 200N. Calculate the power developed by the engine. If the car now moves up an incline at the same constant speed, calculate the new power developed by the engine. Assume that the frictional force is still 200 N and that sin(theta)=1/20 where theta is the angle of the incline to the horizontal. Problem 2: An...
* This is all the information given QUESTION 1 (iii,iv) PLEASE!!!: Examine the car performance when...
* This is all the information given
QUESTION 1 (iii,iv) PLEASE!!!:
Examine the car performance when the angle of both the front and
rear wings is set to θ = 10◦. In all the analysis that follows
ignore frictional losses other than drag. Determine:
(iii) What is the maximum speed the vehicle can safely corner a
bend with R = 30 m (ans. 108Km/hr).
What is the power required at this speed? (ans. 27.8KW)
(iv) What is the maximum speed...
* This is all the information given QUESTION 1 (iii,iv) PLEASE!!!: Examine the car performance when the angle of both the front and rear wings is set to θ = 10◦. In all the analysis that follows ign...
* This is all the information given
QUESTION 1 (iii,iv) PLEASE!!!:
Examine the car performance when the angle of both the front and
rear wings is set to θ = 10◦. In all the analysis that follows
ignore frictional losses other than drag. Determine:
(iii) What is the maximum speed the vehicle can safely corner a
bend with R = 30 m (ans. 108Km/hr).
What is the power required at this speed? (ans. 27.8KW)
(iv) What is the maximum speed...
(non calculus based physics) Question 1 An Olympic weight lifter lifts an 1800 N set of...
(non calculus based physics) Question 1 An Olympic weight lifter lifts an 1800 N set of weights from the ground to a vertical distance of 2.20 m above his head. Assuming he moves the weights at constant speed, how much work does the weight lifter do? Question 2 A 4.5 kg trunk, initially at rest, takes 2.0 s to slide 2.8 m down a rough 25° slope. Calculate: the work performed by the force of gravity. the amount of mechanical...
L2 r. cunhinning moncones the spood of piston at the hepinning of the stonke in the...
L2 r. cunhinning moncones the spood of piston at the hepinning of the stonke in the cylinder cushimin decrees the speed of piston ot the beginning of the role in the und 2) Which Type of bydraulic finder has one piston connected to piston rud extended on both the a female clevis 1. Circular fans c. Trunnion all of the above Which of the following is used for mounting purpose in luydraulic cylinders? sides of the cylinder! 3. telescopic cylinder...
Question 1 1 pts What is the kinetic energy of a man who weighs 980N who...
Question 1 1 pts What is the kinetic energy of a man who weighs 980N who is riding in a car traveling 40 km per hour? Express your answer in Joules, but don't type the unit in the answer box. Round to the nearest whole number. (Careful with the units) 1 pts Astudent slides her 80.0-kg desk across the level floor of her dormitory room a distance 4.00 m at constant speed. If the coefficient of kinetic friction between the...
on
Cannot figure out part B in number 1, number 4 at all, and part
C in number 6. Please help!!!!
1. A dock worker pushes a 250.0 kg crate for 200.0 meters with an acceleration of 1.50 m/s'. The angl is 20.0 degrees below horizontal fritional force is 75.0 N against the crate, what energy is lost to friction? horizontal. a) How much work has gone into pushing the cart for that distance? b) If the 11500 |J |...
Total: 20 pts) A car is braking hard. There are two significant resistive forces acting on it, a quadratic (cv2) air drag, and a constant (umg) frictional force. If you are interested in finding v(x) (rather than v(t)), there is a commonly used method known as the "v dv/dx rule”, which uses the chain rule to rewrite ü = = di = v . a) [12 pts) Write down the equation of motion for Ü = (v) and use the...
Problem 1: A car of mass 1000 kg moves at a constant speed of 20 m/s along a horizontal road where a frictional force is 200N. Calculate the power developed by the engine. If the car now moves up an incline at the same constant speed, calculate the new power developed by the engine. Assume that the frictional force is still 200 N and that sin(theta)=1/20 where theta is the angle of the incline to the horizontal. Problem 2: An...
* This is all the information given
QUESTION 1 (iii,iv) PLEASE!!!:
Examine the car performance when the angle of both the front and
rear wings is set to θ = 10◦. In all the analysis that follows
ignore frictional losses other than drag. Determine:
(iii) What is the maximum speed the vehicle can safely corner a
bend with R = 30 m (ans. 108Km/hr).
What is the power required at this speed? (ans. 27.8KW)
(iv) What is the maximum speed...
* This is all the information given
QUESTION 1 (iii,iv) PLEASE!!!:
Examine the car performance when the angle of both the front and
rear wings is set to θ = 10◦. In all the analysis that follows
ignore frictional losses other than drag. Determine:
(iii) What is the maximum speed the vehicle can safely corner a
bend with R = 30 m (ans. 108Km/hr).
What is the power required at this speed? (ans. 27.8KW)
(iv) What is the maximum speed...
L2 r. cunhinning moncones the spood of piston at the hepinning of the stonke in the cylinder cushimin decrees the speed of piston ot the beginning of the role in the und 2) Which Type of bydraulic finder has one piston connected to piston rud extended on both the a female clevis 1. Circular fans c. Trunnion all of the above Which of the following is used for mounting purpose in luydraulic cylinders? sides of the cylinder! 3. telescopic cylinder...
Question 1 1 pts What is the kinetic energy of a man who weighs 980N who is riding in a car traveling 40 km per hour? Express your answer in Joules, but don't type the unit in the answer box. Round to the nearest whole number. (Careful with the units) 1 pts Astudent slides her 80.0-kg desk across the level floor of her dormitory room a distance 4.00 m at constant speed. If the coefficient of kinetic friction between the...
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