Question

a man walking with a speed of v=2m/s constant in magnitude and direction passes under a lantern hanging at a height p above the ground .find the velocity in m/s with the edge of the shadow of the mans head moves over the ground , if his height is h given that p= 3h

Answer 1

Speed = 2m/s
V = m/s = ?
Height of man = h
Height of lantern hanging = p
Given p = 3h

h/p = v/2
h/3h = v/2
V = 2/3 = 0.66m/s






V = 2/3 = 0.66 m/s