At what speed will a body of mass $1\, kg$ have a kinetic energy of $1\, J$ (in $, m/s$)?

Calculate the work required to be done to stop a car of $1500 \, kg$ moving at a velocity of $60 \, km/h$. (in $J$)

State whether the following statement is true or false:
When an arrow is released from a bow,potential energy changes into kinetic energy.

An object of mass $5\,kg$ falls from a height of $5\,m$ above the ground. The loss of potential energy of the mass is:

$A$ light and a heavy object have the same momentum. Find out the ratio of their kinetic energies. Which one has a larger kinetic energy?

Explain that a flying bird possesses both potential and kinetic energy and provide their expressions.