A ball is thrown vertically upward with a speed of 40 m/s. The time taken by the ball to reach the maximum height would be approximately

The time period of a 1 m long pendulum approximates to

All objects experience a buoyancy when they are immersed in a fluid. Buoyancy is

According to Fleming's right-hand rule, if the forefinger indicates the direction of the magnetic field and the thumb shows the direction of motion of the conductor, then the stretched middle finger will predict the direction of