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3 years ago

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If a pulley system with an ideal mechanical advantage of 2,000,000 is used in lifting a 2,000 lb. car, how far would the car mov

e if the effort moved 2 ft.?
_____ ft.

1 x 10-3
1 x 10-6
1 x 10-9
1 x 10-12

1 answer:

krek1111 [17]3 years ago

4 0

Answer:

C

Explanation:

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ss7ja [257]

Answer:

Force, |F| = 2100 N

Explanation:

It is given that,

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The momentum is reduced to zero, final speed, v = 0

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$F=\dfrac{p}{t}$

$F=\dfrac{mv}{t}$

$F=50\ kg/s\times 42\ m/s$

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So, the magnitude of the force exerted on the wall is 2100 N. Hence, this is the required solution.

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2 years ago