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A stationary object explodes into two fragments of masses 2 kg and 4 kg. Just after the explosion, velocity of the smaller fragment is found to be 8 m/s. Then kinetic energy of the larger fragment just after explosion is
detailed solution
Correct option is C
(3)Conserving linear momentum,4 × v=2 ×8 ⇒ v=4 m/s.∴ Kinetic energy of 4kg mass = 12 × 4× 42J=32 Joule.Talk to our academic expert!
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In the figure given the position-time graph of a particle of mass 0.1 kg is shown. The impulse at t = 2 s is :
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