Question

A person of mass 50 kg standing on a smooth horizontal plane of ice throws a body of mass 5kg with velocity 10m/s then the total kinetic energy of person and body is

Answer 1

Answer:-

• Mass=5kg=m
• Velocity=v=10m/s

We know that

$\boxed{\sf K.E=\dfrac{1}{2}mv^2}$

$\\ \sf\longmapsto K.E=\dfrac{1}{2}\times 5\times 10$

$\\ \sf\longmapsto K.E=\dfrac{50}{2}$

$\\ \sf\longmapsto K.E=25J$