Q. In which of the following situations the force applied by the weight of a person becomes zero in a lift (Solved)
1. Lift moves up with an acceleration of 9.8 meter per sq. second
2. Lift moves down with an acceleration of 9.8 meter per sq. second
3. Lift moves up with an speed of 9.8 meter per second
4. Lift moves up with down speed of 9.8 meter per second
- b. Lift moves down with an acceleration of 9.8 meter per sq. second