Question
17.A cart of mass 150 kg is pulled horizontally on a frictionless surface with force 10 N. If 100 g/s sand is being dr opped in the cart vertically then find the speed of the system when cart has 100 kg sand in it. (1) 10 m/s (2) 20 m/s (3 ) 40 m/s (4) 50 m/s