Acat plays with a toy mouse suspended from a light string of length 1.25 m, rapidly battling the mouse so that it acquires a speed of 2.75 m/s while the string is still vertical. use energy conservation to find the mouse's maximum height above its original position

As per the energy conversation:

Kinetic Energy = Potential Energy

1/2 x m x v^2 = m x g x h

h = 0.5 x v^2/g

= 0.5 x (2.75 m/s) /9.81 m/s^2

= 0.385 m

another example of kinetic energy would be,

kinetic energy   >     moving energy

answer   >   letter choice (c),   a hammer falling off a table.

hope that !                                         : )