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marusya05 [52]
4 years ago
7

What force rubs things away

Physics
2 answers:
Trava [24]4 years ago
8 0
Friction makes things (like soles) rub away
coldgirl [10]4 years ago
6 0
Friction rub things away.
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A force of 60 N is applied to a skier to pull him along a horizontal surface so that his speed remains constant. If the coeffici
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1200\ \text{N}

Explanation:

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A 2000-kg railway freight car coasts at 4.4 m/s underneath a grain terminal, which dumps grain directly down into the freight ca
ruslelena [56]

Answer:

933. 3kg

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Final speed,v=3 m/s

By conservation of momentum

Initial momentum=Final momentum

mu=m'v

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2000\times 4.4=m'(3)

m'=\frac{2000\times 4.4}{3}

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C

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