A truck is moving under a hopper with a constant speed of 20m/s. Sand

1.	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)
Answer» GIVEN conditions ⇒ 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. Now, USING the Formula, Force = Mass × Acceleration = 20 × 20 = 400 N. Now, Magnitude of the Force is 400 N. The direction of the Force will be opposite to the motion of the truck since the sand falls on the truck. Hope it HELPS.

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)

Answer»

GIVEN conditions ⇒

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.

Now, USING the Formula,

Force = Mass × Acceleration

= 20 × 20

= 400 N.

Now, Magnitude of the Force is 400 N.

The direction of the Force will be opposite to the motion of the truck since the sand falls on the truck.

Hope it HELPS.

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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)

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