Conceptual 6-1(B)

Last updated almost 3 years ago

7 questions

Required

2

Library

Conceptual 6-1(B)

Last updated almost 3 years ago

7 questions

Required

2

Draggable item		Corresponding Item

Required

1

Required

1.5

Required

1.5

Required

1

Required

2

Required

1

Match the type of work to its impact:

Draggable item		Corresponding Item
Negative work		Adds energy
Positive 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

Required

2

How much force did he push with?

Required

1

Complete the energy diagram:

Match the type of work to its impact:

Negative work

Adds energy

Positive 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.

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

positive

negative

zero

How much force did he push with?

Complete the energy diagram:

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

positive

negative

zero