A stuntman drives a car of mass 1125 east with a speed of 20m/s.

a. If the car accelerates at a rate of -2m/s^2, how long will it take the car to go 50m

b. The stuntman drives the car off an 80m cliff while going 15m/s. How long will it take the car to land?

c. How far horizontally from the cliff will the car land?

anchor = archer //

grav potential energy

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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