Question

Give reasons:
(i) When we strike at the bottom of a pile of coins, only the lowest coins move.
(ii) A long jumper runs slowly at first and then speeds up before he takes a leap.

Answer 1

Explanation:

when we hit at the bottom of the pile of coins only the lowermost coin moves because the force is only applied at the bottom due to inertia of rest it moves towards andand the rest of Queens are balanced by force due to gravity.