Question

The speed of release of an object does not depend on the mass of the object. true or false​

Answer 1

Statement : The speed of release of an object does not depend on the mass of the object.

To check : statement is true or false.

solution : let an object of mass m kg starts to fall from a tower of height h m.

initial velocity of the object, u = 0

acceleration acting on the object , a = -g m/s² [ negative sign indicates that acceleration due to gravity acting downwards (along the centre of earth) ]

now using formula, v² = u² + 2as

here s = -h [ ball is falling from the top of tower if we assume top of tower is frame of reference then, distance travelled by object is -h ]

so, v² = 0 + 2(-g)(-h)

⇒v = √(2gh)

here you see velocity of object depends upon height but doesn't depend upon the mass of it.

Therefore the given statement is true.