A 60 kg block is pushed by a horizontal force causing the block to accelerate by 1 m/s2. The block has an initial velocity of 5 m/s. The coefficient of friction between the block and the horizontal floor is 0.40. Find the magnitude of the applied force. a. 245.99 N        b. 254.94 N c. 249.59 N        d. 295.44 N

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Q: need help

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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?”