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An explosion breaks an object into two pieces, one of which has 2.30 times the mass...

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Physics

An explosion breaks an object into two pieces, one of which has2.30 times the mass of the other. If 7700 J were released in theexplosion, how much kinetic energy did each piece acquire(a)Calculate the velocity of the target ball after the collision.

heavier piece? ___J

lighter piece? ____J

A softball of mass 0.220 kg that is moving with a speed of 8.0m/s (in the positive direction) collides head-on and elasticallywith another ball initially at rest. Afterward it is found that theincoming ball has bounced backward with a speed of 6.3 m/s.

(a) Calculate the velocity of the target ball after thecollision
____m/s
(b) Calculate the mass of the target ball.
____ kg

A 707 kg car stopped at an intersection is rear-ended by a 1830kg truck moving with a speed of 11.5 m/s. If the car was in neutraland its brakes were off, so that the collision is approximatelyelastic, find the final speed of both vehicles after thecollision.
____ m/s (car)
____ m/s (truck)

Answer & Explanation Solved by verified expert
4.0 Ratings (503 Votes)
KE1 P122m1 KE2 p222m2 KE1 KE2 7700 P122m1 p222m2 P1 P2 P m1 23 m2 P2223 m2 P2m2 7700 P22m2 123 1 7700 P22m2 536667 J KE of second    See Answer
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