Question

Calculate the magnitude of the normal force on a 12.7 kg block in the following circumstances....

Calculate the magnitude of the normal force on a 12.7 kg block in the following circumstances. (Enter your answers in N.)

(a)

The block is resting on a level surface.

N

(b)

The block is resting on a surface tilted up at a 25.8° angle with respect to the horizontal.

N

(c)

The block is resting on the floor of an elevator that is accelerating downward at 2.28 m/s2.

N

(d)

The block is on a level surface and a force of 175 N is exerted on it at an angle of 25.8° below the horizontal.

N

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