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A body of mass 300 gm is at rest. What force inNewton will you have to apply to move it through200 cm in 10 sec.?

Answer»

t= 10 seconds

S distance= 200 cm=2 metres

mass = 300 grams= 0.3 kilograms

Velocity=S/t=2/10=0.2 metre/ sec

initial velocity u= 0

Acceleration = (v-u)/t

⇒a=(0.2-0)/10

⇒a=0.02 metre/sec²

Now mass = 0.3 kg

So force=m×a

⇒F=0.3×0.02

⇒Force=0.006 Newtons.



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