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Alexxx [7]
2 years ago
15

A student is running at her top speed of 5. 4m/s to catch a bus.

Physics
1 answer:
Kay [80]2 years ago
8 0

Answer:

A student is running at her top speed of 5. 4m/s to catch a bus.

Explanation:

Thats to fast

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Explanation :

The forces acting on hot- air balloon are:

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Force due to air resistance, (F)

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Its weight W is acting in downward direction. The upthrust force U acts in upward direction. When the balloon is moving upward, the air resistance is in downward and vice versa.

In this case, the hot-air balloon descends vertically at constant speed.

so, a=0

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when it is ascending let the weight that it is releasing is R, so

(W-R) + F = U..........(2)

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Answer:

force=12000

Explanation:

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2 years ago
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A 50.0-kg block is being pulled up a 16.0° slope by a force of 250 n that is parallel to the slope. the coefficient of kinetic
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When dealing with multiple forces acting on a body, it is advisable to draw a free-body diagram like that shown in the picture. There are four forces acting on the box: weight (W) pointing straight down, normal force perpendicular to the slope denoted as Fn, force used to push the box upwards along the slope and the frictional force acting opposite to the direction of motion of the box denoted as Ff. Frictional force is equal to coefficient of kinetic friction (μk) multiplied with Fn.

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Which of the following universal forces is the most effective over long distances?
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