Question

A track is moving under a hopper with constant speed 20m/s . sand falls on the truck at a rate 20kg/s . what is the force acting on the truck due to falling of sand? ​

Answer 1

Answer:

Speed of the Body = 20 m/s. Mass of the sand = 20 kg. Time taken by the sand to falls on the truck = 1 seconds. ∴ Acceleration = 20 m/s².