Sandra scores 12 out of 30 in her maths test. Write this as a fraction in its simplest form.
1 answer:
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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:
(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:
Therefore, the force exerted by the weight lifter is 81.7 N.
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