Suppose a ball of mass m is thrown vertically upward with an initial speed v, its speed decreases continuously till it becomes zero.

Is value of h=5 m

(i) According to the equation of motion under gravity v2 − u2 = 2gs  Where,  u = Initial velocity of the ball  v = Final velocity of the ball  s = Height achieved by...

According to the equation of motion under gravity v2 − u2 = 2gs  Where,  u = Initial velocity of the stone = 40 m/s  v = Final velocity of the stone = 0...

(a) Time of ascent is equal to the time of descent. The ball takes a total of 6 s for its upward and downward journey.  Hence, it has taken 3 s...

According to the law of conservation, energy can neither be created nor be destroyed but can transform from one form to another.  Therefore, K.E. Lost by the ball = P.E. gained...

A body is thrown vertically upward with velocity u, the greatest height h to which it will rise is,  (b) u2 /2g

When the temperature of the heater becomes greater than the temperature of the surrounding, some of the heat is lost to the surroundings in the form of thermal radiations. After...

The changes that can be reversed (reversible).

The correct answer is (c) vA = vB  Explanation: The ball 'A' thrown vertically upward will return back to the initial point with the same thrown speed but its direction will be downwards....