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1. |
When does a body have zero force of friction? |
A. | When no force is applied on a body at rest |
B. | When a large force is applied on a body |
C. | Force exerted by the first body on the second is not equal to the force exerted by the second body on the first. |
D. | When a body is sliding on the surface |
Answer» B. When a large force is applied on a body | |