The three diagrams below show a block of mass m being pulled or pushed at constant velocity along a table with a force F. Assume the surfaces to be frictionless. F case (i) case (ii) What is the magnitude of the normal force in each case? Use the following as necessary: g, F, and 0. case (iii) N = N = (i) N = (11) (iii) How would your answer to part (a) change if, all else being the same, the object moved with constant acceleration? O The normal force will increase. O The normal force will decrease. O The normal force will remain the same.

The Outlaw Run roller coaster in Branson, Missouri, features a track that is inclined at 80° below the horizontal and that spans a 49.4-m (162 ft) change in height. Y If the coefficient of friction for the roller coaster is the friction force on a 1800-kg coaster train? 0.30, what is the magnitude of Express your answer to two significant figures and include appropriate units. fx = 920 N Submit Part B. Correct Correct answer is shown. Your answer 919.88 N was either rounded differently or used a different number of significant figures than required for this part. Previous Answers How much work is done by friction during the time the coaster train travels along the incline? Express your answer to two significant figures and include appropriate units. W = -4.6x10¹ J Submit Previous Answers All attempts used; correct answer displayed Enter your answer with a different unit type. Review a list of acceptable units. Part C vju What is the speed of the coaster train at the bottom of the…

Part A Make a free-body diagram of the box B. Draw the force vectors with their tails at the dot. Part B Make a free-body diagram of the box A. Draw the force vectors with their tails at the dot.

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