Question

9. State true or false against the following statements. (i) The displacement of the block is parallel to the surface of the ramp, therefore the frictional force is also parallel to the ramp but in the same direction of the displacement. (ii) If you push on a heavy object with a small force it will not slide. Friction will prevent it from sliding. (iii) the rougher the surface, the faster an object will travel over the surface

Answer 1

Answer:

1)false

2)true

3)false

Explanation:

1)frictional force is a opposing force and acts in opposite direction of displacement.

2)true ,as if the external force is less or equal to the friction then the body or object will not move.

3) false ,..rougher the surface is ..more is the friction(i.e. the opposing force ) and it will slows down the object