Derive the relation between kinetic energy and momentum. [3 MARKS]
Each point: 1 Mark
Let the mass of the object is m and the speed of the object is v.
1. Kinetic energy (KE) = 12mv2 ................... (i)
2. Momentum (P) = mv ...................(ii)
Dividing and multiplying equation (i) by m, we get,
KE = (mv)22m .....................(iii)
now, substituting the value of P from eq (ii) in eq (iii), we get,
3. KE = P22m