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An explosion blows a rock into three par...

An explosion blows a rock into three parts. Two pieces go off at right angles to each other, `1.0 kg` piece with velocity of `12 m//s` and other `2.0 kg` piece with a velocity of `8 m//s`. If the third piece flies off with a velocity of `40 m//s` compute the mass of the third piece.

A

0.2 kg

B

0.3 kg

C

0.4 kg

D

0.5 kg

Text Solution

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The correct Answer is:
D
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