Question

aminibus of mass15Kg travelling at avelocity of 72km/hr collides with astationary car of mss900kg.The impact takes to see see before the two moving at aconstant velocity of20m/s.calculate the;common velocity,distance moved after the impact,the force of imulse during coallitionand the kinetic energy before and after the collusion

Answer 1

you can calculate the Kinetic energy before and after:
before.. 1/2 *15*v^2 (change 72km/hr to m/s)
after... 1/2 (15+20) 20^2

common velocity? I have no idea what you mean. distance moved? can't be done with the given information. Force of impulse? cant be done.