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A block of mass 4 kg is initially at res...

A block of mass `4 kg` is initially at rest on a horizontal frixtionless surface. A horizontal force `vec(F) = (3+x) hat(i)` newtons acts on it, when the block is at `x = 0`. The maximum kinetic energy of the block between `x = 0` and `x = 2 m` is

A

`6 J`

B

`8J`

C

`9J`

D

`10 J`

Text Solution

Verified by Experts

The correct Answer is:
B
`Delta KE = W = underset(x_(1))overset(x_(2))int vec(F).vec(dx)`
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