NEETPhysicsWork, Power and Energy
A body falls towards Earth in air. Will its total mechanical energy be conserved during the fall?
Options
- AYes, because the resistance of air does not affect the body's total mechanical energy.
- BNo, because the resistance of air is a non-conservative force leading to a decrease in mechanical energy.
- CYes, because the gravitational force will balance out the resistance of air during the fall.
- DNo, because the force of gravity will be greater than the resistance of air, leading to a loss in mechanical e
Correct answer
B. No, because the resistance of air is a non-conservative force leading to a decrease in mechanical energy.
Step-by-step solution
Correct Option is : (B) No, because the resistance of air is a non-conservative force leading to a decrease in mechanical energy.