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Water is poured from a height of 10m int...

Water is poured from a height of 10m into a mepty vessel at the rate of 1 litre per second . If the weight of the vessel is 10 kg ten th weight indicated at time `t=60s` will be

A

70 kg

B

more than 70 kg

C

less than 790 kg

D

50 kg

Text Solution

Verified by Experts

The correct Answer is:
B
We feel that the weight of the vessel after 60 second will be equal to weight of the vessel + weight of water collected in 60 s
`=(10+60) kg= 70kg " " `[ 1 litre of water weights 1 kg]
But we have to take into account the force produced due to the momentum of water falling from a height 'h'. Hence the weight indicated on the weighing machine will be more thean 70 kg.
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