Dynamics Physics

A box with mass of 10 kg is being pushed by 20 N Force. Calculate the acceleration! (no friction)

• 1 m/s²

• 2 m/s²

• 3 m/s²

• 4 m/s²

Tags

NGSS.MS-PS2-2

A 1000 kg car is being push by two men. Each men is pushing to the left with a force of Force of 100 N. Calculate the acceleration of the car!

• 0.1 m/s²

• 0.2 m/s²

• 0.3 m/s²

• 0.4 m/s²

Tags

NGSS.MS-PS2-2

A box is being pushed 20 N to the right by Alpha. At the same time Beta pulls the box to the right with Force of 10 N. At the same time Gamma pulls the box to the left with a force of 30 N. What is the resultant force of that box?

• 60 N to the right

• 30 N to the left

• 30 N to the right

• 0 N

Tags

NGSS.MS-PS2-2

A force of 8 Newton’s is applied to a crate so that it moves at a constant velocity of 1.5 m/s. What is the net force?

• 1.5 N

• 8 N

• 12N

• 0 N

Tags

NGSS.MS-PS2-2

A force of 8 Newton’s is applied to a crate so that it moves at a constant velocity of 1.5 m/s. What is the magnitude of the frictional force?

• 1.5 N

• 8 N

• 12N

• 0 N

Is this object in equilibrium?

• Yes and it's moving right

• Yes and its at rest

• No, it's accelerating right

• No, it's at rest

Tags

NGSS.HS-PS2-1

Here are 3 FBD diagrams for an elevator. Consider them to be A, B, C. Which one shows an elevator accelerating upward?

• A

• B

• C

• none of these

Tags

NGSS.HS-PS2-1

Here are 3 FBD diagrams for an elevator. Consider them to be A, B, C. Which one shows an elevator at rest?

• A

• B

• C

• none of these

Here are 3 FBD diagrams for an elevator. Consider them to be A, B, C. Which one shows an elevator moving upward but slowing down?

• A

• B

• C

• none of these

Tags

NGSS.HS-PS2-1

Here are 3 FBD diagrams for an elevator. Consider them to be A, B, C. Which one shows an elevator moving at a constant rate of 2.5 m/s?

• A

• B

• C

• none of these

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4