A student tries to push a 30 kg desk across the room. She pushes at a downward angle of 33.2° (measured from the horizontal) with a force of 200 N. As a result, the desk moves with a constant velocity of 1.87 m/s. How much friction is present?  Ff =  N How much does the desk weigh? Fg =  N How much Normal force must be present? FN =  N

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Q: Imagine that you take the cross product A x B, where A-22 +79 and B-10€ +99. What is the z-component…

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Q: V C1 C2 C3

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Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”