Question 24 A system of two cables supports a 150-N ball as shown. 30° 150 N What is the tension in the right-hand cable? A A) 87 N B B) 300 N c) C) 170 N D) D) 260 N Question 25 An engineer is asked to design a playground slide such that the speed a child reaches at the bottom does not exceed 6.0 m/s Determine the maximum height that the slide can be. A) A) 1.8 m B) B) 2.9 m c) C) 3.2 m D) D) 4.5 m

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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?”