Child rides the Gravitron at the carnival. What force acts as the centripetal force on this ride?

Assume the child has a mass of 50 kg. Calculate her weight.

Due to her inertia and weight, the child's tendency would be to slide down the wall. What force acts upward to keep her from sliding down the wall?

Assume that she has a tangential speed of 10 m/s and the ride has a radius of 3 meters. What is the magnitude of the normal force acting on her?

E. Assuming she does not slide, the vertical (upward and downward) forces in the diagram must be equal. What minimum coefficient of friction is required between the wall and the child to keep her from sliding?

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note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.

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