Force Calculation Review

A 2,000 kg car is traveling on the highway. The car’s motor can provide 10,000N of force pushing the car forward, but there is a 3,000N resistive force due to air friction,.

What is net force acting on the car?

• 13,000 N

• 10,000 N

• 7,000 N

• 3,000 N

Tags

NGSS.HS-PS2-1

A 2,000 kg car is traveling on the highway. The car’s motor can provide 10,000N of force pushing the car forward, but there is a 3,000N resistive force due to air friction,.

What is the car’s acceleration?

• 5 m/s^2

• 1.5 m/s^2

• 0 m/s^2

• 3.5 m/s^2

Tags

NGSS.HS-PS2-1

A 110 kg skydiver is experiencing an acceleration of 4.1 m/s^2 downward.

What is the force of gravity acting on the skydiver?

• 451 N

• 1,078 N

• 1,529 N

• 627 N

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

A 110 kg skydiver is experiencing an acceleration of 4.1 m/s^2 downward.

How much upward force is acting on him?

• 627N

• 1,078 N

• 451 N

• 1,529 N

Tags

NGSS.HS-PS2-1

A man is pulling on a 7kg box with a force of 150N. There is a frictional force of 100N (backwards) acting as well.

What is the net force acting on the box?

• 100 N

• 250 N

• 50 N

• 150 N

Tags

NGSS.HS-PS2-1

A man is pulling on a 7kg box with a force of 150N. There is a frictional force of 100N (backwards) acting as well.

What is the acceleration of the box?

• 14.3 m/s^2

• 7.1 m/s^2

• 0 m/s^2

• 21.4 m/s^2

Tags

NGSS.HS-PS2-1

A mystery package is delivered to your door. Upon examination, you observe that a net force of 400N accelerates the box at a rate of 7 m/s^2. What is the mass of the mystery package?

• 3,920 kg

• 0.0175 kg

• 2,800 kg

• 57.1 kg

Tags

NGSS.HS-PS2-1

A 55 kg woman is standing on a scale in an elevator. The scale reads 600 N.

What is the force of gravity acting on the woman?

• 600 N

• 0 N

• 539 N

• 9.8 N

Tags

NGSS.HS-PS2-1

A 55 kg woman is standing on a scale in an elevator. The scale reads 600 N.

How much acceleration is she experiencing?

• 10.9 m/s^2

• 1.1 m/s^2

• 9.8 m/s^2

• 20.7 m/s^2

Tags

NGSS.HS-PS2-1

A 55 kg woman is standing on a scale in an elevator. The scale reads 600 N.

Is she accelerating up or down?

• it cannot be determined

• neither

• up

• down

Tags

NGSS.HS-PS2-1