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Biblioteka

Conceptual 5-1 (B)

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Posljednje ažuriranje about 3 years ago
10
Napomena autora:

Obavezno
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Pitanje 1
1.

The units for momentum are:

Michael Phelps (who has a mass of 98 kg) is swimming 2.5 m/s in a lake. He gets passed by a canoe (mass = 55 kg) moving at 2 m/s.

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Pitanje 2
2.

What is Michael Phelps' momentum? (must include units)

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Pitanje 3
3.

What is the momentum of the canoe? (must include units)

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Pitanje 4
4.

How fast would the canoe have to move to have the same momentum as Michael Phelps?

(must include units)

Pitanje 5
5.

A watermelon (1.5 kg) is falling with 13.5 kgm/s of momentum downwards. What is its velocity?

A giant hockey puck (mass = 0.8 kg) is sliding across the ice at 1.7 m/s.

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Pitanje 6
6.

What is the initial momentum of the puck?

(must include units)

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Pitanje 7
7.

A player then pushes it with their stick until it reaches a speed of 3.4 m/s. What is the new momentum of the puck?

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Pitanje 8
8.

By how much did the puck's momentum change?

(must include units)

Pitanje 9
9.

An object at rest still has momentum due to its mass

Pitanje 10
10.

Momentum is a vector, because it has velocity in its equation, and velocity is a vector