2 years ago

why is a train more difficult to stop then a rolling ball even if they are traveling at the same speed? URGENT

1 answer:

5 0

Think of the formula force=mass x acceleration. even though they have the same acceleration, a train has more mass. is that helpful?

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Which one of the following accurately describes the force of gravity? A. The gravity acceleration has no effect on a body moving

attashe74 [19]

Answer: C
The gravity acceleration is in the same direction as the force of gravity, and thus toward the center of the earth.

Explanation:
All celestial bodies in our solar system experience forces between each other. On earth, the localized gravitational force in the earth's atmosphere is directed toward the center of the earth. It's magnitude is
32.174 ft/s² in English units,
9.807 m/s² in SI units.

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4 0

3 years ago

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As the time required to run up the stairs increases, the power developed by that person

weeeeeb [17]

Yes. Power will decrease.

'cause Power = Work / time
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Hope this helps!

8 0

2 years ago

A car is initially moving at 20 m/s east and a little while later it is moving at 10 m/s north. Which of the following best desc

Nina [5.8K]

Answer:d

Explanation:

Given

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