Question

The displacement of a body is given to be proportional to the cube of time elapsed. The magnitude of the acceleration of the body is

• A. Increasing with time
• B. Decreasing with time
• C. Constant but not zero
• D. Zero

Answer 1

Answer: (A)

Increasing with time

Answer 2

As x $\propto t^{3}$

Velocity , v $\propto 3t^{2}$

Accelerations, $a \propto 6t$