Physics

Physics

Problem

A force acting along the

x

-axis on a

2\,\text{kg}

body varies with position according to

F(x)=2+Bx

(in newtons), where

B

is a constant and

x

is in metres. Starting from rest at

x=0

, the body attains a speed of

5\,\text{m s}^{-1}

after moving

5\,\text{m}

on a frictionless surface. The value of

B

is a)

0.60\,\text{N m}^{-1}

b)

1.2\,\text{N m}^{-1}

c)

2.0\,\text{N m}^{-1}

d)

0.48\,\text{N m}^{-1}

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