4.3 2 blocks

What is the acceleration is the applied force, or net force, is 20 N and the total mass is 5 kg?

• 15

• 2

• 3

• 4

If the 2-kg block accelerates at 4 m/s², what is the net force on it? ____ N

• 6

• 8

• 20

• 12

What is the net force on the 3-kg block accelerating at 4 m/s²? _____N

• 12

• 8

• 6

• 3

The net force on the 3-kg block is 12 N, and this force is applied by the 2-kg block. What force does the 3-kg block apply back on the 2-kg block? This is Newton's 3rd law.

• 12 N

• 8 N

• 20 N

• 6 N

30 N to the right, 12 N to the left, net force is? ____ N

• 18

• 12

• 6

• 42

What force is pushing left on the 2-kg block from the 3-kg block?

____ N

• 20

• 8

• 12

• 18