A 0.0230 kg bullet moving horizontally at 450 m/s embeds itself into an initially stationary 0.500 kg block.   (a) What is their velocity (in m/s) just after the collision? _____ m/s   (b) The bullet-embedded block slides 8.0 m on a horizontal surface with a 0.30 kinetic coefficient of friction. Now what is its velocity (in m/s)? _____ m/s   (c) The bullet-embedded block now strikes and sticks to a stationary 2.00 kg block. How far (in m) does this combination travel before stopping? _____ m

A 0.60 kg ball is thrown horizontally at 20 m/s in the -x direction and collides with a 5.0 kg box which is at rest on a frictionless floor. After the collision, the ball is traveling at 15 m/s in the +x direction. What is the box's velocity after the collision (all answers below are in the +x or -x direction; the figure below shows the directions of the ball's velocities)? Before: After: ÜBox;a =? ÜBOX;b = 0 îbalu;b of Ûdall;a %3D O -4.2 m/s O 5.0 m/s O -35 m/s O -20 m/s O 21 m/s

Two 2.0-kg bodies, A and B, collide. The velocities before the collision are ?? = 15? ̂+ 30?̂ m/s and ?? = −10? ̂+ 5.0?̂m/s. After the collision, ?? = −5.0? ̂+ 20?̂m/s. (a) What is the final velocity of B? (b) How much kinetic energy is gained or lost in the collision?

Two vehicles approach a right angle intersection and then collide. After the collision, they become entangled. If their mass ratios were 1:4 and their respective speeds as they approached were both 13 m/s, find the magnitude and direction of the final velocity of the wreck. 12.5 m/s at 79° 13.1 m/s at 79° 15.7 m/s at 79° 16.3 m/s at 79° Correct.

Ball A has a mass of 3 kg and is moving with a velocity of (vA)1 = 9 m/s when it makes a direct collision with ball B, which has a mass of 2.5 kg and is moving with a velocity of (vB)1 = 5 m/s . Suppose that e = 0.7. Neglect the size of the balls. a) Determine the velocity of A just after the collision measured to the right. (vA)2 = ? b) Determine the velocity of B just after the collision measured to the right. (vB)2 = ?

A 0.0290 kg bullet moving horizontally at 400 m/s embeds itself into an initially stationary 0.500 kg block. (a) what is their velocity just after the collision? m/s ? (b) The bullet embedded block slides 8.0 M on a horizontal surface with a 0.30 kinetic coefficient of friction. Now what is its velocity? m/s ? (c) The bullet embedded block now strikes and sticks to a stationary 2.00 KG block how far does this combination travel before stopping? m?

1. An apple that weighs 2.7 N falls vertically downward from rest for 1.4 s. (a) What is the change in the apple’s momentum per second? (b) What is the total change in its momentum during the 1.4-second fall?Explain and lable the problem.

0.453 kg ball is thrown at a stack of 15.8 cm tall, mo = 0.383 kg objects and hits with a As part of a carnival game, a mb = perfectly horizontal velocity of Voi = 11.8 m/s. Suppose that the ball strikes the topmost object. Immediately after the collision, the ball has a horizontal velocity of vb.f = 4.35 m/s in the same direction, the topmost object has an angular velocity of w, = 5.23 rad/s about its center of mass, and all the remaining objects are undisturbed. Assume that the ball is not rotating and that the effect of the torque due to gravity during the collision is negligible. If the object's center of mass is located r = 11.1 cm below the point where the ball hits, what is the moment of inertia I, of the object about its center of mass? Vbi I, = kg - m? What is the center of mass velocity vo.cm of the tall object immediately after it is struck? m/s Vo,cm Vp.f

A 51 kg boy on roller skates moves with a speed of 3 m/s. He runs into a 42 kg girl on skates. Assuming they cling together after the collision, what is their speed (in m/s)? (Assume the girl is initially at rest.) m/s

A 1200-kg car moving at 15.6 m/s suddenly collides with a stationary car of mass 1500 kg. If the two vehicles lock together, what is their combined velocity immediately after the collision? 5.5 m/s O 8.6 m/s O 6.9 m/s O 12.1 m/s