Question

A heavy stone is thrown from a cliff of height h with a speed v, the stone will hit the ground with maximum speed if it is thrown- a)vertically downward b)vertically upward c)horizontally d)the speed does not depend on the initial direction

Answer 1

Option d is the correct answer.
Reason: Speed is a scalar quantity. It does not depend upon direction.
Hence, option d

Answer 2

"Correct answer: d) The speed does not depend on the initial direction

$Speed\quad =\quad \frac { Displacement }{ Time }$

The speed is a scalar quantity which is "directly proportional" to "rate of change" of displacement. The rate indicates the change of value with "respect to time".

Thus, when a "heavy stone" is thrown from a "cliff" of height “h”, the speed of the stone with which it touches the ground depends on the rate at which the stone displaced."