Physicsmedium · Past Paper
A car of mass 1000 kg is moving with a velocity of 10 m/s. Its kinetic energy is:
A10000 J
B50000 J
C1000 J
D5000 J
✓ Correct Answer: B — 50000 J
KE = 1/2 mv^2 = 1/2 * 1000 * 10^2 = 500 * 100 = 50000 Joules.
Share this question
More from Physics
- When a body is thrown vertically upwards, what is its velocity at the highest point?
- A bird flies 100m North, then 100m South. Its average velocity is:
- When the speed of a car is tripled, the distance required to stop it becomes:
- What type of image is formed on a cinema screen?
- In a transformer, if the efficiency is 80%, input power is 1000W, and output voltage is 200V, find the output current.