Determine the magnitude and direction of the momentum of a 60 kg runner going 2.4 m/s towards the north.​

2

6. A stationary skateboarder I with a mass of 50 kg pushes a stationary skateboarder II

with a mass of 75 kg. After the push the skateboarder II moves with a velocity of 2 m/s to

the right. What is the velocity of the skateboarder I?

A. 3 m/s to the left

B. 2 m/s to the left

C. 1 m/s to the right

D. 3 m/s to the right

E. 2 m/s to the right

7. A loaded freight car A with a mass of 24,000 kg moves at a constant velocity of 8 m/s

on a horizontal railroad track and collides with an

empty stationary car B with a mass of 8,000 kg.

After the collision the cars stick to each other and

moves like one object. What is the velocity of two

cars after the collision?

A. 2 m/s B. 4 m/s C. 6 m/s D. 8 m/s D. 12 m/s

8. A 40 kg skateboarder runs at a constant velocity of 12 m/s and

jumps to a stationary skateboard with a mass of 8 kg. What is the

velocity of the skateboard after the jump?

A. 12 m/s B. 90 m/s C. 60 m/s D. 20 m/s E. 10 m/s

9. An 80 kg diver jumps off a moving boat. The boat has

a mass of 400 kg and moves at a constant velocity of 2

m/s. What is the velocity of the boat after the jump if the

diver jumps with a velocity of 3 m/s in opposite

direction to the initial velocity of the boat?

A. 2 m/s B. 3 m/s C. 4 m/s D. 5 m/s E. 6 m/s

10. Block A with a mass 2m moves on a frictionless

horizontal surface at a constant speed v and collides

inelastically with B of mass m. What is the velocity of

two blocks after the collision?

A. v B. !

!

v C. !

!

v D. ?

?

v E.!

!

v

11. Block A with a mass m moves on a frictionless

horizontal surface at a constant velocity v and collides

elastically with an identical block B. What is the velocity

of block A after the collision?

A. 0 m/s B. v C.!

!

v D. !

!

v E. !

!

v6. A stationary skateboarder I with a mass of 50 kg pushes a stationary skateboarder II

with a mass of 75 kg. After the push the skateboarder II moves with a velocity of 2 m/s to

the right. What is the velocity of the skateboarder I?

A. 3 m/s to the left

B. 2 m/s to the left

C. 1 m/s to the right

D. 3 m/s to the right

E. 2 m/s to the right

7. A loaded freight car A with a mass of 24,000 kg moves at a constant velocity of 8 m/s

on a horizontal railroad track and collides with an

empty stationary car B with a mass of 8,000 kg.

After the collision the cars stick to each other and

moves like one object. What is the velocity of two

cars after the collision?

A. 2 m/s B. 4 m/s C. 6 m/s D. 8 m/s D. 12 m/s

8. A 40 kg skateboarder runs at a constant velocity of 12 m/s and

jumps to a stationary skateboard with a mass of 8 kg. What is the

velocity of the skateboard after the jump?

A. 12 m/s B. 90 m/s C. 60

answer: cesare beccaria developed the classical school of criminology with from philosopher jeremy bentham

explanation:

you go to your settings preference and in the end youll see sth that says "i want to delete my acc" click on it and u'll acc will be deleted but u have to wait.