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kondaur [170]
3 years ago
9

A weight lifter does 9.8 J of work while lifting a weight straight upward through a distance of 0.12m. What was the force exerte

d by the weight lifter?
Mathematics
1 answer:
gulaghasi [49]3 years ago
3 0

Answer:

The force exerted by the weight lifter is 81.7 N.

Step-by-step explanation:

We can find the force exerted by the weight lifter using the definition of work:

W = F*d    (1)

Where:

F: is the force

d: is the displacement

We have W = 9.8 J of work and d = 0.12 m, so by solving equation (1) for F we have:

F = \frac{W}{d} = \frac{9.8 J}{0.12 m} = 81.7 N

Therefore, the force exerted by the weight lifter is 81.7 N.

I hope it helps you!                          

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