J, A falling 0.1 kg ball has a speed of 7.0 m/s just before it hits...
After falling from rest at a height of 32.2 m, a 0.438 kg ball rebounds upward, reaching a height of 20.5 m. If the contact between ball and ground lasted 1.76 ms, what average force was exerted on the ball? (In N)
After falling from rest at a height of 34.5 m, a 0.468 kg ball rebounds upward, reaching a height of 23.7 m. If the contact between ball and ground lasted 1.96 ms, what average force was exerted on the ball?
Name: J-Number: 01946 18 J-Number:RL74a A 0,2 kg steel ball is thrown horizontally with a speed of 15 m/s. It hits a wall and rebounds horizontally with a speed of 12 m/s. The bal was in contact with the wall for 1.5 ms. Find (a) initial and final linear momentum. 12 m/s Wall 15 m/s (b) Change in linear momentum (c) Average force exerted by the wall on the ball.
Alex bounced a 0.59 kg rubber ball off the floor. The ball's speed just before impacting the floor was 12 m/s, and the speed just after the impact was 4.5 m/s. What implies Ly was applied to the ball by the floor? If the ball was in contact with the flow for 0.036s, what was the magnitude of the average force applied by the floor on the ball? Find Impluse Find Average force
A ball falls from height of 19.5 m, hits the floor, and rebounds vertically upward to height of 15.0 m. Assume that mall 0.390 kg. (a) What is the impulse (in kg. m/s) delivered to the ball by the floor? (b) If the ball is in contact with the floor for 0.0400 seconds, what is the average force (in N) the floor exerts on the ball?
A 55-kg soccer player jumps vertically upwards and heads the 0.45-kg ball as it is descending vertically with a speed of 23 m/s. (a) If the player was moving upward with a speed of 4.0 m/s just before impact, what will be the speed of the ball immediately after the collision if the ball rebounds vertically upwards and the collision is elastic?(b) If the ball is in contact with the player's head for 23 ms, what is the average acceleration...
A 0.12-kg ball is moving at 6 m/s when it is hit by a bat, causing it to reverse direction and have a speed of 14 m/s. What is the magnitude of the change in the momentum of the ball? 0.39 kg middot m/s 0.42 kg middot m/s 1.3 kg middot m/s 2.4 kg middot m/s Alex throws a 0.15-kg rubber ball down onto the floor. The ball's speed just before impact is 6.5 m/s, and just after is 3.5...
A 88.0 kg soccer player jumps vertically upwards and heads the 0.45 kg ball as it is descending vertically with a speed of 23.0 m/s. If the player was moving upward with a speed of 4.20 m/s just before impact. (d) What will be the speed of the ball immediately after the collision if the ball rebounds vertically upwards and the collision is elastic? (Note that the force of gravity may be ignored during the brief collision time.) (e) If...
2) A 2 kg ball is dropped and hits the ground at 10 m/s. It rebounds with 80% of its Energy. Calculate the impulse. If the ball is in contact with the ground for.005 sec, find the average force exerted on the ball.
A 4.50-kg steel ball strikes a wall with a speed of 7.0 m/s at an angle of θ = 60.0° with the surface. It bounces off with the same speed and angle (see figure below). If the ball is in contact with the wall for 0.200 s, what is the average force exerted by the wall on the ball? (Assume right and up are the positive directions.) Fx = N Fy = N