body is moving in a vertical circular motion. Which one of the following forces does it not experience? a) Force of gravity b) Centripetal force c) Normal reaction force d) Centrifugal force
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body is moving in a vertical circular motion. Which one of the following forces does it not experience?
a) Force of gravity
b)
c) Normal reaction force
d) Centrifugal force
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- Two boxes, A and B, are connected to each end of a light vertical rope, as shown in the following figure. A constant upward force 84.0 N is applied to box A. Starting from rest, box B descends 13.0 m in 4.70 s . The tension in the rope connecting the two boxes is 30.0 N (Figure 1). I) What is the mass of box B? (Express your answer with the appropriate units.) II) What is the mass of box A? (Express your answer with the appropriate units.)EXPLANATION MUST BE TYPED - CANNOT BE HAND-WRITTEN When you weigh yourself on good old terra firma (solid ground), your weight is 142 lb. In an elevator your apparent weight is 121 lb. What are the direction and magnitude of the elevator’s acceleration?A 5.5-kg rock and a 7.7 x 10-4-kg pebble are held near the surface of the earth. (a) Determine the magnitude of the gravitational force exerted on each by the earth. (b) Calculate the magnitude of the acceleration of each object when released. (a) Frock = Fpebble (b) arock= = apebble = Save for Later i i i i Attempts: 0 of 1 used Submit Answer
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