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Conceptual 6-1(B)

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Posljednje ažuriranje about 3 years ago
7
Obavezno
2
Pitanje 1
1.

Match the type of work to its impact:

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

Negative work

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Adds energy

Positive work

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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.

Obavezno
1
Obavezno
1.5
Obavezno
1.5
Obavezno
1
Obavezno
2
Obavezno
1
Pitanje 2
2.

What is the KE of the sled before the push?

Pitanje 3
3.

What is the KE of the sled after the push?

Pitanje 4
4.

How much work was done?

Pitanje 5
5.

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

Pitanje 6
6.

How much force did he push with?

Pitanje 7
7.

Complete the energy diagram: