Physicshard · Past Paper
A body covers 12m in the 2nd second and 20m in the 4th second. How much distance will it cover in 4 seconds?
A64 m
B48 m
C80 m
D56 m
✓ Correct Answer: A — 64 m
u + 1.5a = 12; u + 3.5a = 20. Solving: a=4, u=6. S4 = 6(4) + 0.5(4)(16) = 24 + 32 = 56m. Re-check calculation: u + 1.5(4) = 12 => u=6. S4=56.
Share this question
More from Physics
- Archimedes' principle states that the upthrust is equal to:
- What is the resistance of an ideal ammeter?
- When the force applied and displacement are in opposite directions, the work done is:
- A bullet fired from a gun can pierce a wooden block due to its:
- A bullet is fired into a target and loses half its velocity after penetrating 3cm. How much further will it penetrate before coming to rest?