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Physics 11: Dynamics Exam Name: _______________________ Block: D 1. Explain Newton’s 2nd Law in your own words. 2. Find the acceleration. µ = 0.15 3. Find the acceleration and the tension in the rope between the blocks. µ = 0.25 4. Find the acceleration of the system µ = 0.48 5. a) Find the acceleration of the system given the block was initially at rest. b) How fast is the block moving after 3.2 seconds? µ = 0.66 35ْ 6. A 15 kg lawnmower is pushed at an angle of 35 degrees [above the horizontal – as shown], with a force of 85 N. If the coefficient of friction between the long grass and the lawnmower is 0.14, how fast will the lawnmower accelerate?