First slide

Work

Question

A body moves from rest with a constant acceleration. Which one of the following graphs represents the variation of its kinetic energy K with the distance travelled x ?

Moderate

A
B
C
D

Solution

When body moves under action of constant force then kinetic energy acquired by the body K.E. = F × S
$∴$ KE $\propto$ S (If F = constant)
So the graph will be straight line.

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