What would be the reaction to hand's force on the box?

- 13 N
- 14 N
- 0 N
- 28 N

80 kg were parachuting on this planet.

Calculate the force exerted by air resistance at terminal velocity (i.e., gravity or weight is equal to the opposite force of air resistance).

- 3200 N
- 320 N
- 0 N
- 160 N

- speed
- velocity
- acceleration
- posture

Calculate the force of friction.

- 0 N
- 2 N
- 0.5 N
- 0.2 N

The value of the force is

- 10 N
- 20 N
- 15 N
- 12 N

a horizontal force of 90 N acting to the right and a horizontal force of 50 N to the left.

Find the acceleration of the block and its direction.

- 1 m/s
^{2} - 2 m/s
^{2} - 5 m/s
^{2} - 4 m/s
^{2}

Calculate the weight of the crate.

- 388 N
- 290 N
- 410 N
- 392 N

The acceleration is

- 1 m/s
^{2} - 2 m/s
^{2} - 3 m/s
^{2} - 4 m/s
^{2}

- in the opposite direction to the object's friction.
- in the opposite direction to the object's motion.
- in the opposite direction to the object's mass.
- in the opposite direction to the object's vertical force.

What is the relationship between the two accelerations?

- Acceleration of B2 is larger
- Acceleration of B1 is larger.
- equal.
- no relationship

Find the force the box exerts on you.

- 100 N
- 700 N
- 350 N
- 0 N

The same force is being used on 60-kg person P

- a smaller acceleration.
- a larger acceleration.
- same acceleration.
- zero acceleration.

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Date of last modification: Summer , 2019