NEET 2008 Physics question

Physics Laws of Motion NEET 2008

Sand is being dropped on a conveyor belt at the rate of kg/s. The force necessary to keep the belt moving with a constant velocity of m/s will be

(1)Zero
(2) newtonCorrect
(3) newton
(4) newton

Answer: (2)

Solution

The belt moves at constant speed , but the mass lying on it increases at the rate . Each second a mass at rest is brought to speed . Force required \frac{dp}{dt}$ =

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-089941