3 years ago

In the formula Work=Force X Distance, what happens to the amount of work done if either Force or Distance is increased?

Physics

1 answer:

AfilCa [17]3 years ago

6 0

Explanation:

If force or distance is increased, then amount of workdone will also increase.

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2 years ago

A ball is whirled on the end of a string in a horizontal circle of radius R at constant speed v. Complete the following statemen

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Answer:

Keeping the speed fixed and decreasing the radius by a factor of 4

Explanation:

A ball is whirled on the end of a string in a horizontal circle of radius R at constant speed v. The centripetal acceleration is given by :

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We need to find how the "centripetal acceleration of the ball can be increased by a factor of 4"

It can be done by keeping the speed fixed and decreasing the radius by a factor of 4 such that,

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New centripetal acceleration will be,

$a'=\dfrac{v^2}{R'}$

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$a'=4\times \dfrac{v^2}{R}$

$a'=4\times a$

So, the centripetal acceleration of the ball can be increased by a factor of 4.

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3 years ago

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Answer:

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