Physics-
General
Easy
Question
A block of mass 10 kg is released on a fixed wedge inside a cart which is moved with constant velocity 10 m/s towards right. Take initial velocity of block with respect to cart zero. Then work done by normal reaction on block in two second in ground frame will be: 
- zero
- 960 J
- 1200 J
- none of these
The correct answer is: 1200 J
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