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Katena32 [7]
2 years ago
15

The mechanical advantage of a simple machine is 3 and its velocity ratio is 4 find its efficiency ​

Physics
1 answer:
LiRa [457]2 years ago
6 0

Answer:

75%

Explanation:

Efficiency=MA/VR*100

=3/4*100

=0.75*100

=75%

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<h3>What is negative angular acceleration?</h3>
  • A particle that has a negative angular velocity rotates counterclockwise.
  • Negative angular acceleration () is a "push" that is hence counterclockwise.
  • The body will speed up or slow down depending on whether and have the same sign (and eventually go in reverse).
  • For instance, when an object rotating counterclockwise slows down, acceleration would be negative.
  • If a rotating body's angular speed is seen to grow in a clockwise direction and decrease in a counterclockwise direction, it is given a negative sign.
  • It is known that a change in the linear acceleration correlates to a change in the linear velocity.

Let t be the time taken to stop.

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Use the first equation of motion for rotational motion

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To learn more about angular acceleration, refer to:

brainly.com/question/21278452

#SPJ4

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