A block of mass 5 kg is moving horizontall

Your Ultimate Guide to JEE & NEET Question Solutions

A block of mass $5\,kg$ is moving horizontally at a speed of $1.5\, m/s$. A perpendicular force of $5\,N$ acts on it for $4 \,sec$. What will be the distance of the block from the point where the force started acting ........... $m$

A

$10 $

B

$8$

C

$6$

D

$2$

A block of mass $5\,kg$ is moving horizontally at a speed of $1.5\, m/s$. A perpendicular force of $5\,N$ acts on it for $4 \,sec$. What will be the distance of the block from the point where the force started acting ........... $m$

${S_{{\rm{Horizontal}}}} = ut = 1.5 \times 4 = 6\,m$

${S_{{\rm{Vertical}}}} = \frac{1}{2}a{t^2} = \frac{1}{2}\frac{F}{m}{t^2} = \frac{1}{2} \times 1 \times 16 = 8\,m$

${S_{{\rm{Net}}}} = \sqrt {{6^2} + {8^2}} = 10\,m$