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Force and Laws of Motion | Exercise

Question 78

A car of mass 2400 kg moving with a velocity of 20 m/s is stopped in 10 seconds on applying brakes. Calculate the retardation and the retarding force.

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Mass of the car = 2400 kg

Initial velocity, u = 20 m/s

Final velocity, v = 0 m/s

Time, t = 10s

Retardation, a = (v-u)/t = 2 \mathrm{m/ s^2}

Force = ma = 4800N

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Our top 5% students will be awarded a special scholarship to Lido.

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Question 78

A car of mass 2400 kg moving with a velocity of 20 m/s is stopped in 10 seconds on applying brakes. Calculate the retardation and the retarding force.

Looking to do well in your science exam ? Learn from an expert tutor. Book a free class!

Mass of the car = 2400 kg

Initial velocity, u = 20 m/s

Final velocity, v = 0 m/s

Time, t = 10s

Retardation, a = (v-u)/t = 2 \mathrm{m/ s^2}

Force = ma = 4800N

Our top 5% students will be awarded a special scholarship to Lido.

subject-cta
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