Me out

a student want to pick up a box that weighs 15 n. which statement below is true?
question 2 options:

a) with 5 n of upward force, the student can lift the box

b) since he is lifting it, any amount of upward force will lift it.

c) anything greater than 15 n will lift it because he has to overcome the weight first.

d) upward force does not determine whether the box could be lifted.

C

Explanation:

Because you would need to be able to handle the weight to move it.

they start with the same

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.