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  • Given below are two statements : Statements I : A truck and a car moving with same kinetic energy are brought to rest by applying breaks which provide equal retarding for

Given below are two statements :

Statements I : A truck and a car moving with same kinetic energy are brought to rest by applying breaks which provide equal retarding forces. Both come to rest in equal distance.

Statements II : A car moving towards east takes a turn and moves towards north, the speed remains unchanged. The acceleration of the car is zero.

In the light of given statements, choose the most appropriate answer from the options given below

Option: 1

Statements I is correct but Statements II is incorrect.


Option: 2

Statements I is incorrect but Statements II is correct.


Option: 3

Both Statements I and Statements II are correct.


Option: 4

Both Statements I and Statements II are incorrect .


Answers (1)

best_answer

Statement-1 true

\\ Work \ done =\Delta K E \\ Work \ done =-\mathrm{FS}=0-\mathrm{K} \\ \mathrm{S}=\mathrm{K} / \mathrm{F}

Since kinetic energy and force are the same for both car and truck, both will cover the same distance to come to rest.

Statement-2 false

\text { Velocity is changing } \Rightarrow \vec{a} \neq 0

Posted by

Ritika Jonwal

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