nazli father buys a bar fridge with a mass of 30kg. he unloads the box containing the bar fridge in his driveway and starts to push it towards the house. at first he has to push with a force of 135N to get the box to start moving. once it is moving, he has to exert a Force of 120N to keep it moving with a constant speed. for the box on the driveway, calculate the maximum coefficient of static friction?​ calculate the coefficient of kinetic friction

c) up

hope this

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.