How long will it take a force of 10 and to stop a mass of 2.5 kg which is moving at 20 Metre per second?

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How long will it take a force of 10 N to stop a mass of 2.5 kg which is moving at 20 m/s ?

We are going to find accelerationForce = mass × acceleration`10 = 2.5 xx a`⇒ `10/2.5 = a`⇒ `(10 xx 10)/(2.5 xx 10) = a`⇒ a = 4Now , putting these values in the equation : `v = u + at`⇒ `20 = 0 + 4 xx t`⇒ 20 = 4t⇒ `20/4 = t`⇒ `t = 5s`

Concept: Newton’s Laws of Motion - Newton's Second Law of Motion

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