Physics-
General
Easy
Question
A car moves 40m due east and turns towards north and moves 30m then turns 
east of north and moves 
The net displacement of car is (east is taken positive x -axis, North as positive y - axis)
The correct answer is:
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, 2ms-1 for the other ball the angle between the motion of balls is
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Consider the following statements
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The P-V diagram of a system undergoing thermodynamic transformation is shown in figure. The work done on the system in going from A ® B ® C is 50 J and 20 cal heat is given to the system. The change in internal energy between A and C is
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