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4 years ago

Someone please help? :)

Physics

1 answer:

Gnoma [55]4 years ago

8 0

Answer:

(A) $F_N - mg\cos\theta$

Explanation:

The net force perpendicular to the surface of the incline is the sum of the gravity force component, which is mgcos(theta), and the reactionary normal force caused by the surface of the incline. The sum is F_N - mgcos(theta) and is usually 0 which is why the object is not moving perpendicularly to the surface of the incline.

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Step one:

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= initial KE- KE final

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