Suppose an airplane fires bullets in the same direction it
travels. Does the momentum of the plane increase, decrease, or
remain the same?
Explain.
The momentum of the plane is decreased..
Here momentum is conserved... By the bullet, part of initial momentum is taken. So final momentum of plane is decreased.
Suppose an airplane fires bullets in the same direction it travels. Does the momentum of the...
4. A mass of 2 kg is held 4 meters above the ground. The gravitational potential energy of this object, relative to the ground, is ___. 5. Which is easier, stopping a 1000 kg car traveling at 40 m / s or a 2000 kg car traveling at 20 m / s? 8. Suppose an airplane fires bullets in the same direction it travels. Does the momentum of the plane increase, decrease or remain the same? Explain
Part A: A machine gun fires 55.8 g bullets at a speed of 750 m/s. The gun fires 182 bullets/min. What is the average force the shooter must exert to keep the gun from moving? Answer in units of N. Part B: What is the momentum of a two-particle system composed of a 1000 kg car moving east at 50 m/s and a second 1000 kg car moving west at 85 m/s? Let east be the positive direction. Answer in...
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Flying against the wind, an airplane travels 2900 kilometers in 5 hours. Flying with the wind, the same plane travels 7420 kilometers in 7 hours. What is the rate of the plane in still air and what is the rate of the wind? Rate of the plane in still air: X o ? Rate of the wind:
An airplane of mass 10,000 kg is flying over level ground at a constant altitude of 4.30 km with a constant velocity of 165 m/s west. Its direction is currently straight toward the top of a mountain. At a particular instant, a house is directly below the plane at ground level. (a) At this instant, what is the magnitude of the plane's angular momentum relative to the house (in kg m-/s)? kg. m/s (b) As the plane continues its constant...
1. An airplane leaves airport A and travels in a straight line in a direction 30 degrees East of North at a constant speed of 300km/hr for 40 minutes, then it abruptly changes its direction to 25 degrees South of East and now travels at a constant velocity of 200km/hr for 30 minutes, and finally it abruptly heads directly South and travels at a velocity of 300km/hr for 60 minutes before landing at airport B. (a) calculate the distance, D,...
Tutorial: Angular Momentum and Torque III. Angular Momentum The angular momentum of a point particle is defined by: L = ixp. Here, is a vector that points from the point of rotation (or point around which the angular momentum is calculated) to the location of the particle and p = mb is the linear momentum of the particle. A Your little brother Joey is playing with his toy airplane. The airplane is tied to a string and its motor makes...
During this process, does the puck's linear speed increase, decrease, or remain the same? A puck on a horizontal, frictionless surface is attached to a string that passes through a hole in the surface, as shown in the figure(Figure 1). As the puck rotates about the hole, the string is pulled downward, bringing the puck closer to the hole. O increases O decreases O remains the same Submit Request Answer Part B Complete previous part(s) Part During this process, does...
An airplane with a ground speed of 550 km/hr travels along a heading of 30 degrees N of W. At that high altitude there is a powerful 210 km/hr wind (known as the jet stream) 40 degrees south of west. Determine the direction that the pilot is aiming the plane.
5. Two airplanes are flying in the same direction in adjacent parallel corridors. At time t = 0, the first airplane is 15 km behind the second one. Suppose the speed of the first plane (km/hr) is normally distributed with mean 510 and standard deviation 14 and the second plane's speed is also normally distributed with mean and standard deviation 498 and 14, respectively. (a) (2) What is the probability that after 1 hour of flying, the first plane has...
An Airplane travels at 951 km/h. how long does it take to travel 1.00 km? (SI units, always) Make sure there is a space between the number and unit.)