Physicshard · Past Paper

If a body covers a distance s in time t such that s = t^3, the acceleration is:

AConstant
BVariable
CZero
DAlways 6

✓ Correct Answer: B — Variable

v = ds/dt = 3t^2, a = dv/dt = 6t. Since 'a' depends on 't', it is variable.

Share this question

More from Physics