A 100 g steel ball falls from a height of 1.8m on to a metal plate and rebounds to a height of 1.25 m. Find
a the p. e. of the ball before the fall (g = 10 m/s2).
bits k. e. as it hits the plate,
cits velocity on hitting the plate,
d its k. e. as it leaves the plate on the rebound,
e its velocity of rebound.

the electric field is a “force field” around a charged object that illustrates the direction the electric force would push an imaginary 

dec 23, 2016 - a load of bricks weighing 680 n a distance of 10 m across a parking lot. if if the worker pushes the cart with a constant force of 209 n, what work= force x distance = 220 n x 10 m = 2200 n.m = 2200 j i don't know where the person got it from, but the initial part, work= force x distance me.

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.