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on relative change of momentum with respect to surface. Let any instant the velocity of surface is u, then above equation becomes – 
Based on above concept, in the below given figure, if the cart is frictionless and free to move in horizontal direction, then answer the following :
Given cross-section area of jet 
velocity of jet 
, density of liquid 
of cart 
. The power supplied to the cart, when its velocity becomes 5 m/sec., is equal to :
- 100 W
- 25 W
- 50 W
- 200 W
The correct answer is: 50 W
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<img src="https://mycourses.turito.com/tokenpluginfile.php/c161933dbfaab094c54655ab71e9b8f0/1/question/questiontext/620136/1/1122306/Picture116.png" alt="" width="173" height="128"
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<img src="https://mycourses.turito.com/tokenpluginfile.php/c161933dbfaab094c54655ab71e9b8f0/1/question/questiontext/620136/1/1122306/Picture116.png" alt="" width="173" height="128"
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