rabiasindhu8
Answered

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PLZ HELP THIS IS DUE RN!!!!!! NO ONE IS HELPING ME :(

You hold a 50N bowling ball above your head for 15 minutes. How much work have you done? Why?

9. You run the 100 M race in 15 seconds and your identical twin runs it in 14s. Who did more work? Why?

Sagot :

jcherry99

Answer:

Eght: 0

Explanation:

The work formula is W = F*d where d is displacement (which means the direction matters)

Same amount of work.

Eight

Time does not matter in Work. Force and Distance do.

F = 50 N

s = 0  The only work you have done is move the ball above your head. Thereafter you just held it.

t = 15 but no work is done. Tell your tired muscles that as they try and deal with holding a 5 kg mass above you head.

W = 0

Nine

Again from the last question you should be able to tell that time does not matter. The force is the same for both of you (that's why he's your identical twin).

So the work is the same. You both weigh the same. You both went the same distance.

8

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