Part 3: The mass of the cabinet is 200 kg (m = 200kg).
The coefficient of static friction Ms = 0.3
The normal force of an object on flat ground is Fn = mass. gravity = mass . 9.8 m/s?. Note that this is
equal in magnitude and opposite in direction of the equation for the force due to gravity (also known as
weight):
Fg = m-9
The maximum opposing force due to static friction is Es, and is given by:
Fs = Uls. Fx = ls . m. g
26. Calculate the maximum force due to static friction, using the information above, in the space
below.​

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.