What would you expect to happen to the acceleration if all friction were removed from the ramp, making the net force even higher than 600 n?

If friction were removed from the ramp, the acceleration of the skateboarder will increase.

Explanation:

We assume there is a net Force of 600 N on a skateboarder who is moving with an acceleration 'a'.

There are two forces acting on the skateboarder at a time that affects his movement.

1. A force 'F' higher than 600 N in the direction of movement of skateboarder.

2. Force of friction.

The frictional force is applied by the ramp on the skateboarder and it is always in the direction opposite to the movement.

So, the net force is given as:

Net Force = F - frictional force

The net force is thus 600 N.

CASE: All friction removed from the ramp.

Now frictional force = 0

Net force > 600

We know that

Force = mass * acceleration

which implies that acceleration is directly proportional to the net Force.

Net force on the skateboarder increased when friction force is removed.

Hence, the acceleration will also increase. (Greater than 9.68 ms⁻² in our case)

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