Given below are two statements
Statement I: A car moving towards East takes a turn and moves towards North the speed remains unchanged. The acceleration of the car is not zero.
Statement II: A car and a truck moving with the same kinetic energy are brought to rest by applying breaks which provide equal retarding forces. Both come to rest in equal distance.

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Statement I is correct but Statement II is incorrect.

Statement I is incorrect but Statement II is correct

Both Statement I and Statement II are correct.

Both Statement I and Statement II are incorrect.

answer is C.

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Detailed Solution

For Statement I:
Question Image
From the diagram
$Δ V = V_{f} - V_{i}$
$| Δ V | = \sqrt{2} V$
Thus the velocity is changing , therefore acceleration is not equal to zero. Hence, Statement I is correct.
For Statement II
Work done $= ∆ K E$
Work done = - F S = O – K . E
$\Rightarrow$ K . E = F S $\Rightarrow S = \frac{K . E}{F}$