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3 years ago

6

1. A 61-kg woman doing pull-ups lifts her body a distance of 0.32 meters in 1.8 seconds. What is the power provided by her bicep

s?

1 answer:

Allushta [10]3 years ago

4 0

Answer:

P = mgh/t = 61(9.8)(0.32)/1.8 = 106.275555... ≈ 110 W

Explanation:

Power is the rate of doing work.

The work changes her potential energy.

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Explanation:

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Since Frequency (f) is the reciprocal of the period (T);

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Substituting equation 2 into 1 we have;

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1.38*10^18 kg

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4 years ago

What is the equation of instantaneous velocity<br>

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3 years ago

In April 1974, Steve Prefontaine completed a 10 km race in a time of 27 min, 43.6 s. Suppose "Pre" was at the 8.13 km mark at a

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Answer: $0.084 m/s^2$

Explanation:

Given

Total time=27 min 43.6 s=1663.6 s

total distance=10 km

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and total distance $=d_1+d_2+d_3$

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$a=0.084 m/s^2$

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3 years ago