Question

A body of mass 4kg, initially at rest, after 5 mints attains a velocity of 2m/s. Find the force required to move the body.
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Answer 1

$\color{red}\huge{\underline{\underline{\bf GIVEN\dag}}}$

• $Mass(m)=4kg$
• $Velocity(v)=2m/s$
• $Time(t)=5min=300sec$

$\color{red}\huge{\underline{\underline{\bf GIVEN\dag}}}$

We know that;

$Acceleration(a)= \frac{v}{t}$

$\implies a = \frac{2}{300}$

$\therefore a = \frac{1}{150} {ms}^{ - 2}$

But;

$\blue{ \boxed{Force(F)=ma}}$

$\implies F = (4)( \frac{1}{150} )$

$\orange{ \therefore \boxed{F = 0.02N}}$

HOPE THAT HELPS!!