A car of mass M is sitting on a level surface that leads to a hill of height h. The goal is to shoot some clay of mass m at the cart such that it sticks to the cart and gives it enough speed to reach the top of the hill. What is the minimum speed the clay must be shot at in order to do so? Your final equation should be in terms of M, h,m, and any other known constants.

prolly a beacuse the momentuem the car has increases while going down hill

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.

pythagoras' theorem

square root (-5^2+9^2)

square root (25+81)

square root (106)

angle is tan^-1(9/5)

neg x, pos y