A car and a lorry are moving with the same momentum. If equal amount of brake force is applied, then :

car comes to rest in shorter time

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lorry comes to rest in shorter time

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both takes same time to come to rest

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Solution

The correct option is C both takes same time to come to rest
Force is Defined as change in momentum per unit time.
$F = \frac{△ p}{△ t}$ ; since both of them have same initial and final momentum and are applied with same force therefore the time taken by both of them to come to rest is the same.

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A car and a lorry are moving with the same momentum. If equal amount of brake force is applied, then :

The correct option is C both takes same time to come to restForce is Defined as change in momentum per unit time.F=△p△t ; since both of them have same initial and final momentum and are applied with same force therefore the time taken by both of them to come to rest is the same.