4. A 3 kg ball is rolling toward you at 5 m/s. What magnitude of force...
1. A 10,000 KG truck is traveling at +20 m/s. What would
happen to the momentum of the truck if it increases in velocity in
the same direction?
2. A 120 KG rugby player is running toward another player at 5
m/s. How much force needs to be applied over one second in order to
bring him to a stop?
3. if the acceleration of an object decreases, what happens to
the inertia?
A 10,000kg truck is traveling at +20m/s....
A 6 kg bowling ball rolling at 5 m/s strikes a stationary 4 kg bowling ball. If ball #1 is moving forward at 2 m/s after the collision, what is the speed and direction of ball #2? What is the impulse of the system? If the collision last for .5 seconds, how much force is exerted?
A racquet ball with mass m = 0.252 kg is moving toward the wall
at v = 18.2 m/s and at an angle of θ = 25° with respect to the
horizontal. The ball makes a perfectly elastic collision with the
solid, frictionless wall and rebounds at the same angle with
respect to the horizontal. The ball is in contact with the wall for
t = 0.06 s.
1)
What is the magnitude of the initial momentum of the racquet...
A 5 kg ball traveling to the right at 5 m/s collides with a 4 kg ball at rest. After the collision, the 4 kg ball is traveling to the right at 5.556 m/s. What is the velocity of the ball on the left after the collision? A motor spins a disk (Idisk = 24.4 kg*m2) with a torque of 39 N*m, and a 10 N frictional force acts on the disk at a radius of 2 m. Attached to...
A soccer ball of mass 0.36 kg is rolling with velocity <0, 0, 1.5> m/s, when you kick it. Your kick delivers an impulse of magnitude 2.7 N.s in the -x direction. The net force on the rolling ball, due to the air and the grass, is 0.34 N in the direction opposite to the direction of the ball's time 1.5 s after you kick it, assuming that the ball is at the origin at the moment it is kicked....
During a collision with a wall, the velocity of a 0.200-kg ball changes from 20.0 m/s toward the wall to 12.0 m/s away from the wall. If the time the ball was in contact with the wall was 60.0 ms, what was the magnitude of the average force applied to the ball? Please how do you get 20/32x0.06
A soccer ball of mass 0.50 kg is rolling with velocity 0, 0, 1.8 m/s, when you kick it. Your kick delivers an impulse of magnitude 1.2 N · s in the −x direction. The net force on the rolling ball, due to the air and the grass, is 0.22 N in the direction opposite to the direction of the ball's momentum. Using a time step of 0.5 s, find the position of the ball at a time 1.5 s...
A soccer ball of mass 0.39 kg is rolling with velocity <0, 0, 2.4> m/s, when you kick it. Your kick delivers an impulse of magnitude 2.4 N·s in the -x direction. The net force on the rolling ball, due to the air and the grass, is 0.32 N in the direction opposite to the direction of the ball's momentum. Using a time step of 0.5 s, find the position of the ball at a time 1.5 s after you...
1. A 5 kg ball traveling to the right at 7 m/s collides with a 3 kg ball at rest. After the collision, the 3 kg ball is traveling to the right at 8.75 m/s. What is the velocity of the ball on the left after the collision? 2. A 100-kg box on the right and a 45-kg box on the left are tied together by a horizontal cable. The 100-kg box is acted upon by an external force of...
what is the kinetic energy of a ball with a mass of 5 kg rolling at 10 m/s