1. A woman runs a kilometer using a force of 210N and a power output of 500W. How long in minutes does it take this woman to complete 1 kilometer? 2. Rhonda applies force to the handle of a jack so that she can change a flat tire on her car. If she uses 1,250 joules of energy on a jack which is 40% efficient, how much energy is available to raise the car? a. 1,200 joules    b. 750 joules    c. 500 joules    d. 400 joules

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Asked Oct 27, 2019
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1. A woman runs a kilometer using a force of 210N and a power output of 500W. How long in minutes does it take this woman to complete 1 kilometer? 

2. Rhonda applies force to the handle of a jack so that she can change a flat tire on her car. If she uses 1,250 joules of energy on a jack which is 40% efficient, how much energy is available to raise the car? 

a. 1,200 joules    b. 750 joules    c. 500 joules    d. 400 joules 

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We’ll answer the first question since the exact one wasn’t specified. Please submit a new question specifying the one you’d like answered.

Step 2

Given,

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Force F 210 N Power P 500 W Distance d 1 km =1000 m

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Step 3

The average ...

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ДV Р. At Where, W work & t time A(Fd) Pо At FAd Р. At or Fd P = t Fd t =- Р

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