What happens to the apparent weight of the person inside the lift moving with net upward acceleration?
What happens to the apparent weight of the person inside the lift moving with net upward acceleration?
5 views
1 Answers
1. The lift is said to be moving with net upward acceleration in two possible conditions:
- when the lift just starts moving upwards or
- is about to stop at a lower floor during its downward motion.
2. As the net acceleration is upwards, the upward force must be greater.
∴ F = ma = N – mg
∴ N = mg + ma
∴ N > mg
3. Thus, for a passenger inside this lift, his apparent weight is more than his actual weight when the lift was not accelerated.
5 views
Answered