A ball of mass 0.180 kg is dropped from rest from a height of 1.25 m. It rebounds from the floor to reach a height of 0.730 m. What impulse was given to the ball by the floor? magnitude kg · m/s
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A ball of mass 0.180 kg is dropped from rest from a height of 1.25 m. It rebounds from the floor to reach a height of 0.730 m. What impulse was given to the ball by the floor?
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- A volleyball is spiked so that it's incoming velocity of 4.53 m/s is changed to an outgoing velocity of -22.2 m/s. The mass of the volleyball is .350 kg. What is the magnitude of the impulse that the player applies to the ball?Back in the mid 1800s, the golden age of ivory hunting in Africa, hunters used guns that fired a projectile weighing ½ pound! A typical rifle weight was 30 pounds with a 24 inch barrel and a muzzle velocity of 1500 feet/sec.a) What was the impulse imparted to the hunter by the recoil of the rifle?b) What was the average force applied by the recoiling rifle to the hunter’s shoulder?c) What was the kinetic energy of the recoiling rifle?A 0.278-kg volleyball approaches a player horizontally with a speed of 16.4 m/s. The player strikes the ball with her fist and causes the ball to move in the opposite direction with a speed of 21.6 m/s. (a) What impulse is delivered to the ball by the player? (Take the direction of final velocity to be the positive direction. Indicate the direction with the sign of your answer.) kg m/s (b) If the player's fist is in contact with the ball for 0.0600 s, find the magnitude of the average force exerted on the player's fist.
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- A ball of mass 0.120 kg is dropped from rest from a height of 1.25 m. It rebounds from the floor to reach a height of 0.700 m. What impulse was given to the ball by the floor?A ball of mass 0.160 kg is dropped from rest from a height of 1.25 m. It rebounds from the floor to reach a height of 0.870 m. What impulse was given to the ball by the floor? magnitude directionA ball of mass 0.165 kg is dropped from rest from a height of 1.25 m. It rebounds from the floor to reach a height of 0.920 m. What impulse was given to the ball by the floor? kg-m/s
- The mass of a dog is 35.8 kg. The dog runs into a bouncy wall at 10.0 m/s and bounces back in the opposite direction at 1.75 m/s. What is the magnitude of the dog's impulse n kgm/s?A ball falls from height of 20.0 m, hits the floor, and rebounds vertically upward to height of 15.0 m. Assume that m ball = 0.385 kg. (a) What is the impulse (in kg. m/s) delivered to the ball by the floor? magnitude x direction 979.1 Assume the only impulse delivered to the ball is from the floor, which equals the change in momentum of the ball. Find the initial and final speeds of the ball using conservation of mechanical energy, and calculate Ap noting that all the motion is in the y-direction. kg. m/s up ✓✓ (b) If the ball is in contact with the floor for 0.0300 seconds, what is the average force (in N) the floor exerts on the ball? magnitude 19.223 x Use the impulse-momentum theorem and the result from part (a) to find the force, given that the contact time interval is 0.0300 s. N up direction ✓✓A 0.263-kg volleyball approaches a player horizontally with a speed of 12.8 m/s. The player strikes the ball with her fist and causes the ball to move in the opposite direction with a speed of 21.7 m/s. (a) What impulse is delivered to the ball by the player? (Take the direction of final velocity to be the positive direction. Indicate the direction with the sign of your answer.) kg • m/s (b) If the player's fist is in contact with the ball for 0.0600 s, find the magnitude of the average force exerted on the player's fist.