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SCHOOL IS TOUGH. MAKE IT EASIER ON YOURSELF.

AC is alternating current and DC is direct current. There is a change in direction in the flow of current but for DC there is no such change in direction. 

So the problem here given is about a ball which is kicked at an angle θ\theta. Which is moving with a velocity 50 m/s and reaches a horizontal distance 250 m. We have to find the value of θ\theta.

Let T be the total time of flight of the ball.... (More)

AnswerMechanics

Here in this question we are given a particle which tied to a string and rotated in a circular fashion with radius 'r'.

It is having the velocity of 3 gr\sqrt{3\ gr} at the highest point, we have to find the ratio of tensions in the spring at the hi... (More)