4 years ago

Why exactly do people use simple machines like a pulley

1 answer:

Komok [63]4 years ago

6 0

They can change the direction of force which can result in easier movement.

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Katyanochek1 [597]

Answer:

Explanation:

From the given information:

the car's momentum = momentum of the truck

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v = (2650 kg × 16.0 km/h) / 816 kg

v = 51.96 km/hr

(b) 816 kg × v = 9080 kg × 16.0 km/h

v = (9080 kg × 16.0 km/h) / 816 kg

v = 178.04 km/hr

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