How much force is needed to begin moving book

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Reference no: EM1318939

Q1. You swing a 2.80 stone in the circle, using the full length of a thin 70 rope. At what speed should you swing it so its acceleration will be 9.80?

Q2. A 1.83kg book is placed on a flat desk. Assume the coefficient of static friction between the book and the desk is 0.482 and the coefficient of kinetic friction is 0.22. How much force is needed to begin moving book?

Q3. A horse canters away from its trainer in a straight line, moving 111 m away in 15.0 s. It then turns abruptly and gallops halfway back in 4.90 s.

(a) compute its average speed

(b) compute its average velocity for the entire trip, using "away from the trainer" as the positive direction.

Reference no: EM1318939

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