Chpt 2- Newtons first law of motion- inertia

The use of inclined planes for Galileo’s experiments helped him to

Eliminate the acceleration of free fall.

Discover the concept of energy.

Discover the property called inertia.

Discover the concept of momentum.

A cart is pushed to the right with a force of 15 N while being pulled to the left with a force of 20 N. The net force on the cart is

5 N to the left.

5 N to the right.

25 N to the left.

25 N to the right.

What is the net force acting on the box?

15 N to the left

15 N to the right

5 N to the left

5 N to the right

The equilibrium rule, F = 0, applies to

Vector quantities.

Scalar quantities.

Both of the above.

None of the above.

When you stand on two bathroom scales with one foot on each scale and with your weight evenly distributed, each scale will read

Your weight.

Half your weight.

Zero.

More than your weight.

A bowling ball is in equilibrium when it

Is at rest.

Moves steadily in a straight-line path.

Both of the above.

None of the above.

You are pushing a crate at a steady speed in a straight line. If the friction force is 75 N, how much force must you apply?

More than 75 N

Less than 75 N

Equal to 75 N

Not enough information

You are riding in a van at a steady speed and toss a coin up. Where will the coin land?

Behind you

Ahead of you

Back in your hand

There is not enough information.

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