Physicshard · Past Paper
A particle starts from rest and moves with an acceleration that increases linearly with time as a = kt. The velocity after time 't' will be:
Akt^2
B1/2 kt^2
Ckt
D2kt^2
✓ Correct Answer: B — 1/2 kt^2
v = integral of a dt = integral of kt dt = 1/2 kt^2.
Share this question
More from Physics
- The ability of the eye lens to adjust its focal length is called:
- A racing car has a uniform acceleration of 4 m/s^2. What distance will it cover in 10s after start?
- Energy stored in a body due to its position or configuration is called:
- Relative density has:
- An object is moving such that its velocity is v = 3t^2 + 2t. What is its acceleration at t = 2s?