A block of mass m = 1.3 kg slides down a frictionless track, as shown in Figure

A block of mass m = 1.3 kg slides down a frictionless track, as shown in Figure 2-A (page 94). The block is released at height h = 3.7 m. The radius of curvature of the track at the bottom is R = 1 m. (a) What is the force of the track on the block at A?(b) What is the force of the track on the block at B?

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