Question

A truck is moving under a hopper with a constant speed of 20m/s. Sand falls on the
truck at a rate 20 kg/s. What is the force acting on the truck due to falling of sand?
(Ans: 400N opposite to the motion) (AS)​

Answer 1

Answer:

Speed of truck = 20 m/s. Mass of the sand = 20 kg. Time consumed by sand to fall at the speed of 20 m/s is 1 second. = 400 N.

Answer 2

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