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A particle of mass 1 kg is thrown vertic...

A particle of mass 1 kg is thrown vertically upward with speed 100 m/s. After 5 sec it explodes into two parts. One part of mass 400 g comes back with speed 25 m/s, what is-the speed of the other part just after explosion? (g=`10 m//s^(2)`)

A

600 m/s upward

B

100 m/s upward

C

100 m/s down ward

D

300 m/s upward

Text Solution

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The correct Answer is:
B
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