MCQ
Assertion (A): When a coolie walks on a horizontal ground while carrying a load on his head, no work is done against the force gravity.
Reason (A): The coolie does work against the force of friction when he moves with load.
Reason (A): The coolie does work against the force of friction when he moves with load.
- ABoth A and R are true and R is the correct explanantion of A .
- ✓Both A and R are true but R is not the correct explanation of A .
- CAssertion is false but reason is true.
- DAssertion is true but reason is false.