incline of the ramp is small. surface of the ramp is smooth. object is round and polished. pull of gravity on the object is weak.
A student slides an object down a ramp. The student states that friction is causing the object to slide slowly. Another possible explanation for the slow movement is that the

Options:
- incline of the ramp is small.
- surface of the ramp is smooth.
- object is round and polished.
- pull of gravity on the object is weak.

incline of the ramp is small.