(a) What is the magnitude of the momentum of a 10,000-kg truck whose speed is 12.0 m/s? (b) What speed would a 2000-kg SUV have to attain in order to have (i) the same momentum? (ii) the same kinetic energy?

Solution 1E Momentum of a body of mass m and speed v is given by p = mv . The relationship 2 between momentum and kinetic energy is given by p = 2mE . (a) Given that, mass of the truck m = 10,000 kg Speed v = 12.0 m/s Therefore, the momentum of the truck will be p = mv p = 10,000 kg × 12.0 m/s p = 120,000 kg.m/s Therefore, the magnitude of momentum of the truck will be 120,000 kg.m/s. p 2 Kinetic energy of the truck E = 2m E = (120,000)...