A ball of mass 10 g is moving with a vel...

A ball of mass 10 g is moving with a velocity of `50 "ms"^(-1)`. On applying a constant force on ball for 2.0 s, it acquires a velocity of `70 "ms"^(-1)`. Calculate the magnitude of force applied.

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Force = mass `xx` acceleration
= ma
`=0.01 kg `xx` 10 ms^(-2) = 0.1 N`

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