A truck weighing 1000 kg is moving with velocity of 50 km/h on smooth horizontal roads. A mass of 250 kg is dropped into it. The velocity with which it moves now is –
A. 12.5 km/h
B. 20 km/h
C. 40 km/h
D. 50 km/h
Answer:C
A truck weighing 1000 kg is moving with velocity of 50 km/h on smooth horizontal roads. A mass of 250 kg is dropped into it. The velocity with which it moves now is –
A. 12.5 km/h B. 20 km/h C. 40 km/h D. 50 km/h