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If a body looses half of its velocity on penetrating 3 cm in a wooden block, then how much will it penetrate more before coming to rest?

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asked Mar 20, 2018 in Physics by paayal (26,720 points) ● 4 ● 6 ● 11

If a body looses half of its velocity on penetrating 3 cm in a wooden block, then how much will it penetrate more before coming to rest?

(a) 1 cm 

(b) 2 cm

(c) 3 cm 

(d) 4 cm.

1 Answer

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answered Mar 20, 2018 by sanjaydas (61,430 points) ● 5 ● 7 ● 7
selected Mar 24, 2018 by Vikash Kumar
 
Best answer

(a) : For first part of penetration, by equation of motion,

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