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2 years ago

10

A freight car moves along a frictionless level railroad track at constant speed. The freight car is open on the top. A large loa

d of sand is suddenly dumped into the freight car. What happens to the speed of the freight car?

1 answer:

Fittoniya [83]2 years ago

3 0

The added weight of the sand puts more downward pressure on the wheels contacting the rails, which would cause the trains speed to decrease.

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iogann1982 [59]

Answer:

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Explanation:

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3 years ago

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Answer:

The change in gravitational potential energy of the climber-Earth system, $\Delta E=4.49\times 10^5\ J$

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Given that,

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