Force Calculation

What is the force on a 1000 kg elevator that is falling freely at 9.8 m/sec²

• 102.04 n

• 9,800 n

• 980 n

• 103 n

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A 50 kg skater pushed by a friend accelerates 5 m/sec².  How much force did the friend apply?

• 45 N

• 15 N 

• 10 N

• 250 N

Tags

NGSS.MS-PS2-2

How much force is needed to accelerate a 3kg skateboard at 5m/s^2. 

• 8N

• 1.6N

• 0.6N

• 15N

Tags

NGSS.MS-PS2-2

Calculating POWER (P = W/t) may be a multi-step problem. You may first need to calculate FORCE, which will then allow you to calculate WORK. So, how do you calculate FORCE? (We did this last week.)

• s = d/t

• F = ma

• P = W/t

Tags

NGSS.HS-PS2-1

What is the net force?

c

3 newtons

5 newtons

2 newtons

7 newtons

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Calculate the net force of the object in the image shown.​ (a)  

• 5N

• 35N

Tags

NGSS.MS-PS2-2

Find how much force the man will need to exert to move the car.

• 5000 N

• 50 N

• 20,000 N

• 500 N

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the net force?

Tags

NGSS.MS-PS2-2

What is the net force acting on the car?

Mathematical Equivalence

ON

Tags

NGSS.MS-PS2-2

You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?

• 60 N right

• 10 N left

• 60 n right

• 50 N left

Tags

NGSS.MS-PS2-2