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3 years ago

10

Explain the relationship between resistance and the velocity of shortening.

1 answer:

butalik [34]3 years ago

7 0

The velocity of shortening refers to the speed of the contraction from the muscle shortening while lifting a load. The relationship between the resistance and velocity of shortening is inverse. The greater the resistance, the shorter the velocity of shortening and the smaller the resistance, the larger the velocity of shortening.

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Answer:

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Explanation:

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$\dfrac{1}{2}mv^2=mgh$

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Velocity is a vector meaning it includes an objects speed and direction.

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Kim throws a beach ball up in the air. It reaches its maximum height 0.50s later. We can ignore air resistance. What was the bea

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Answer:

The beach ball's velocity at the moment it was tossed into the air is <u>4.9 m/s.</u>

Explanation:

Given:

Time taken by the ball to reach maximum height is, $t=0.50\ s$

We know that, velocity of an object at the highest point is always zero. So, final velocity of the ball is, $v=0\ m/s$

Also, acceleration acting on the ball is always due to gravity. So, acceleration of the ball is, $a=g=-9.8\ m/s^2$

The negative sign is used as acceleration is a vector and it acts in the downward direction.

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3 years ago

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Acceleration means any change in the speed or direction of motion.

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Answer:

86.6 lbs

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Let the force is X.

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$0.866=\frac{X}{100}$

X = 86.6 lbs

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3 years ago