thrown

A ball is thrown vertically downwards with a velocity of 20m/s

24 m D 5 s 30 m Solution The correct option is A 4 s 20 m Given: Initial velocity, u =20 ms−1 Acceleration due to gravity, g= −10 ms−2 Upward direction is taken as positive. At maximum height, velocity will be zero, (v = 0) as the ball will change the direction of motion. Let the maximum height be H. Using third equation of motion, v2 = u2+2as

An object thrown at a certain angle to the ground moves in a curved path and falls back to the ground. the initial and the final points of the path of the object lie on the same horizontal line. what is the work done by the force of gravity on the object?

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