A6 kg penguin gets onto a ferris wheel, with a radius of 5m, and stands on a bathroom scale. the wheel starts rotating with a constant acceleration of .001 rad/s2 for two minutes and then runs at a constant angular velocity. after the wheel is rotating at a constant rate, what is the penguin’s a) angular momentum about the center of the ferris wheel, b) tangential velocity c) maximum & minimum readings on the bathroom scale (and where do they occur? )

Part a)

Part b)

Part c)

Explanation:

As we know that Ferris wheel start from rest with angular acceleration

time taken = 2 min

so here we have its angular speed after t = 2min given as

Part a)

Angular momentum of the Penguine about the center of the wheel is given as

Part b)

tangential speed is given as

Part c)

Maximum reading of the scale at the lowest point is given as

Minimum reading of the scale at the top point is given as

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.