Show your work wherever possible. Record all answers with THREE DIGITS. O PROBLEMS 1 Block 1 with mass, mi = 45kg, is attached to the wall with a cable. A 425N force pulls on block 2 with mass, m2 = m1 |25kg. a. Calculate the normal force of block 2 acting on block m2 1. b. Calculate the normal force of the ground acting on block 2. c. Calculate the magnitude of the acceleration of block 2 assuming that there is no friction anywhere. d. Calculate the magnitude of the acceleration of block 2 assuming that there is no friction between block 1 and block 2, but the coefficient of friction between the ground and block 2 is 0.30.

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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?”