Question
In circular motion the direction of velocity changes at
_______ points.Solution
In circular motion the direction of velocity changes at every point (the magnitude remains constant). Therefore, the tangential momentum will change at every point. But kinetic energy will remain constant as it is given by 1/2mv2 and v2 is the square of the magnitude of velocity which does not change.
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(Left) K L% Y & 4 E 2 * 3 M & 7 S W # 8 2 H * L (Right)
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Select the correct mirror image of the given pattern when the mirror is placed at 'MN' as shown below.
Select the set in which the numbers are related in the same way as are the numbers of the following sets.
(NOTE : Operations should be performed ...
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