Three particles of mass m each are placed at three corners of an equilateral triangle of side a. The work, which should be done on this system to increase the sides of the triangle to 2a, is:
Posted by Manoj Jaiswar ( PMJ Sir )
A ball falls off a table and reaches the ground in 1s. Assuming g = 10 m/s², calculate its speed on reaching the ground and the height of the table.
we can list the given data as, initial velocity , u = 0m/s time t = 1s g =…
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