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A bobsled has a momentum of 4000 kg•m/s to the south. Friction on the track reduces its momentum to 2500 kg•m/s to the south. What impulse is applied to the bobsled by the friction?
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16 votes
A bobsled has a momentum of 4000 kg•m/s to the south. Friction on the

track reduces its momentum to 2500 kg•m/s to the south. What impulse is
applied to the bobsled by the friction?

User Krys
by
3.2k points

2 Answers

5 votes

Answer: 1500 north

Step-by-step explanation:

Impulse is change of momentum. Since the numbers are already in units of momentum, you just need to subtract one from the other to find the impulse. 4000 - 2500 = 1500. Because the bobsled is traveling south and slowing down, the impulse will be in the opposite direction, or north.


1500 north.

User Dilma
by
3.2k points
11 votes

Answer:

1500 north

Step-by-step explanation:

User Tsemer
by
3.1k points
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