The coefficient of restitution (COR) between a tennis ball and a wooden floor surface is 0.79. a) How high would the tennis ball bounce off the wooden surface if the tennis ball was dropped from a height of 1.8 m above the wooden floor surface?  b) The same tennis ball was dropped from a height of 1.8 m above a concrete surface and bounced up to a height of 1.19 m.  What is the coefficient of restitution (COR) equal to between the tennis ball and the concrete surface?

In a 100% inelastic one dimensional collision, where one mass (0.50 kg) is initially moving at 1.00 m/s [R] collides with a second mass (1.30 kg) initially at rest, which one of the following statements is true? The total kinetic energy before the collision is the same as the kinetic energy after the collision ) The total kinetic energy before the collision is less than the kinetic energy afte the collision The total initial momentum is greater than the total final momentum The total initial momentum is less than the total final momentum The total kinetic energy before the collision is greater than the total kinetic energy after the collision

A proton, moving with a velocity of vi, collides elastically with another proton that is initially at rest. If the speed of the initially moving proton is 2.30 times the speed of the initially at rest proton, find the following. (a) the speed of each proton after the collision in terms of vi initially moving proton initially at rest proton Need Help? (b) the direction of the velocity vectors after the collision initially moving proton initially at rest proton Submit Answer x Vi Read It X V relative to the +x direction relative to the +x direction D

An unfortunate astronaut loses his grip during a spacewalk and finds himself floating away from the space station, carrying only a rope and a bag of tools. First he tries to throw a rope to his fellow astronaut, but the rope is too short. In a last ditch effort, the astronaut throws his bag of tools in the direction of his motion, away from the space station. The astronaut has a mass of ma = 102 kg and the bag of tools has a mass of mp = 19.0 kg. If the astronaut is moving away from the space station at Vj = 2.10 m/s initially, what is the minimum final speed vp.f of the bag of tools with respect to the space station that will keep the astronaut from drifting away forever? Ub.f = m/s

A two-stage rocket (M = 7.50 × 103 kg) initially travels at 4.50 km·s−1 relative to Earth. Explosive charges then separate the capsule (mC = 1.50 × 103 kg) from the booster (mB = 6.00 × 103 kg). After separating, the booster travels at 2.70 km·s−1 along the original direction of motion. a)  What was the speed of the capsule just after the stages separated? b)  How much energy was released by the explosive charges?

A Vulcan spaceship has a mass of 6.50 × 104 kg and a Romulan spaceship is twice as massive. Both have engines that generate the same total force of 9.50 × 106 N. If each spaceship fires its engine for the same amount of time, starting from rest and ignoring any change in mass due to whatever is expelled by the engines, calculate the energy of the Vulcan spaceship if the engines are fired for 102 s.

1. A projectile of mass m = target of mass M = projectile-target combination has a speed V of 0.2kg and initial speed v; = 200 ms-1 hits a stationary 2kg and gets imbedded in it. Immediately after the collision the (a) V = 18.2 ms-1 (b) V = 20.0 ms-1 (c) V = 60.3 ms-1 (d) V = 63.2 ms-1

A basketball with a mass of 0.60 kg is dropped from rest. Just before striking the floor, the ball has a momentum whose magnitude is 3.1 kg m/s. At what height was the ball dropped?

Rock A of mass M and another rock B of mass 2M are released from a height h above the ground. Upon impact which relationship correctly states the momenta of rocks A and B?

A 3.45 kg black ball traveling 4 m/s has a head on collision with a white one at rest. Using the velocities shown, calculate the mass of the white ball, Ignore friction and air resistance. 0 m/s 4 m/s 1.4 m/s 5.7 m/s