A 10 gram beetle is trying to climb up an icy incline. The coefficient of static friction between its feet and the ice is 0.3. What is the steepest angle the incline can make before the beetle can no longer grip the ice?  a) 16.7 degrees  b) 17.5 degrees  c) 72.5 degrees  d) 33.3 degrees  Please show work clearly

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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?”