An 8-kg ball hanging from the ceiling by a light wire 135cm, Ask an Expert

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Q. An 8-kg ball hanging from the ceiling by a light wire 135cm long is struck in an elastic collision by a 2 kg ball moving horizontally at 5.00 m/s just before the collision. Find the tension in the wire just after collision.

Q. A 5.40 g lead bullet travelling at 460m/s is stopped by a large tree. If half the kinetic energy of the bullet is transformed into internal energy and remains with the bullet as the other half is transmitted to the tree, what is the increase in temperature of bullet?

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Category:- Physics
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