Physicseasy · Past Paper
What is the work done in lifting a 5 kg object to a height of 2 m?
A10 J
B98 J
C49 J
D100 J
✓ Correct Answer: B — 98 J
W = mgh = 5 * 9.8 * 2 = 98 Joules (assuming g = 9.8 m/s^2).
Share this question
More from Physics
- Which of the following can produce infrasonic sound?
- Two trains 120m and 80m long are running in opposite directions with velocities 42 km/h and 30 km/h. The time they take to cross each other is:
- The unit of velocity in CGS system is:
- The persistence of hearing for a human ear is approximately how long?
- The reason why we can't walk easily on a sandy beach is: