Question

A body of mass 1 kg is thrown vertically up with an initial speed of 5 m s^-1. What is the magnitude and direction of force due to gravity acting on the body when it is at its highest point? Take G = 9.8 n kg^-1

Answer 1

Mass of body = 1 kg

Initial speed = 5 m/s

Acceleration due to gravity = 9.8 N/kg (vertically downwards)

Force = mass x acceleration

= 1 x 9.8 = 9.8 N = 1 kgf

9.8 N or 1 kgf force acts vertically downwards.