Conceptual 6-1(B)

Draggable item		Corresponding Item
Positive work		Adds energy
Negative work		Removes energy

Draggable item		Corresponding Item
Positive work		Adds energy
Negative work		Removes energy

Two bobsledders and their sled have a combined mass of 500 kg. It is initially stationary, but the athlete in back pushes it over the course of 3 meters and gets it up to a speed of 2m/s.

Required

1

What is the KE of the sled before the push?

Required

1.5

What is the KE of the sled after the push?

Required

1.5

How much work was done?

Required

1

Since the force and displacement are in the same direction, this push represents _____________ work

Required

2

How much force did he push with?

Required

1

Match the type of work to its impact:

Conceptual 6-1(B)

Match the type of work to its impact:

What is the KE of the sled before the push?

What is the KE of the sled after the push?

How much work was done?

Since the force and displacement are in the same direction, this push represents _____________ work

How much force did he push with?

Complete the energy diagram:

What is the KE of the sled before the push?

What is the KE of the sled after the push?

How much work was done?

Since the force and displacement are in the same direction, this push represents _____________ work

How much force did he push with?

Complete the energy diagram: