Question

A stone is falling freely and describes a distance s in t seconds given by equation $s=\frac{1}{2}g{t}^2$. The acceleration of the stone is

• A. Uniform
• B. Zero
• C. Non-uniform
• D. Indeterminate

Answer 1

The correct option is A Uniform

Given $s=\frac{1}{2}g{t}^2\Rightarrow \frac{ds}{dt}=gt$; Again $\frac{d^{2}s}{d{t}^2}=g$
Hence the acceleration of the stone is uniform.