Question

A body of mass 2 kg travels according to the law where and . The acting on the body at t=2 seconds is

A

136 N

B

134 N

C

158 N

D

68 N

Medium
Solution
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Correct option is A)

Here,
Where and m=2 kg

Velocity,

Acceleration,

At
=

The force acting on the body of mass 2 kg is 

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