### What is the frictional force

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##### Reference no: EM134392

Question1

A 43 N toys is placed in a light swing that is attached to ropes 3.5 m long.

(a) Discover gravitational potential energy associated with the toy relative to its lowest position when ropes are horizontal.

(b) Discover gravitational potential energy associated with the toy relative to its lowest position when the ropes make a 30 degree angle with the vertical.

Question2

A 10.0-kg mass is placed on a 25.0 degree incline and friction keeps it from sliding.Coefficient of static friction in this case is 0.580, and the coefficient of sliding friction is 0.520. The mass is known a shove causing it to slide down the incline. What is the frictional force while the mass is sliding?

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