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Planes and pulleys have what types of impact on work and force ? ( MULTIPLE CHOICE )

A. Planes and pulleys can decrease the level of force required to move an object

B. Planes and pulleys can increase the speed of completed work

C. Planes and pulleys can change the direction of applied force

D. Planes and pulleys can decrease the level of work to move an object

Respuesta :

clara92
I’m pretty sure it’s D that applies to both planes and pulleys

Answer:

C

Explanation:

Pulleys Multiply a force and can change the direction of the object. All pulleys only change the direction

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