Forces

The net force acting on the ball to accelerate it is ____ Newtons.

If the force of friction resisting the student's push is 4N, what is the net force acting on the board?

• 4N

• 6N

• 10N

• 14N

The diagrams show forces acting on a toy car as it moves to the right. Which diagram shows the toy car that will most likely accelerate to the right based on these conditions?

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• 
• 
• 

An 1,100 kg car comes uniformly to a stop. If the vehicle is accelerating at -1.2 m/s² ,which force is closest to the net force acting on the vehicle?

• -9,600N

• -1,300N

• -900N

• -94N

A toy truck is at rest on the floor. Which statements describe the forces acting on the toy truck?

• The forces are balanced so motion occurs.

• The forces are balanced so no motion occurs.

• The forces are unbalanced so motion occurs.

• The forces are unbalanced so no motion occurs.

Which rocket has the greatest acceleration?

• Rocket 1

• Rocket 2

• Rocket 3

• Rocket 4

A student pushes 51.5 kilogram bookshelf across a smooth floor with a net force of 67N. What is the approximate acceleration of the bookshelf?

• 1.3 m/s²

• 3,450.5 m/s²

• 15.5 m/s²

• 0.77 m/s²

Which statement best describes the resulting motion of the duck?

• The duck will stop moving

• The duck will stop and then start moving again.

• The duck will continue moving in its current direction.

• The duck will move in the direction the stream is moving.

An archer shot a 0.06 kg arrow at a target. The arrow accelerated at 5,000 m/s²

to reach a speed of 50.0 m/s as it left the bow. During acceleration what was the net force on the bow?

• 3,000N

• 300N

• 3N

• 833N

A student uses a magnet to move a 0.025 metal ball. The magnet exerts a force of 5N which causes the ball to begin moving. What is the acceleration of the ball when it begins to move.

• 200 m/s²

• 0.125 m/s²

• 5 m/s²

• 5.025 m/s²