A mass is projected horizontally from height of 5m above the ground with a velocity of 30m/s. Calculate:

      

A mass is projected horizontally from height of 5m above the ground with a velocity of 30m/s. Calculate:


a) The time taken to reach the ground
b) The horizontal distance traveled before hitting the ground
c) The vertical velocity with which the mass hits the ground

  

Answers


Wilfred
(a)
Initial vertical velocity = 0, a = g; s= 5m
S=ut+1/2gt2
S = 0 + 5t2
T= 1s

(b) Range = Uµ x t = 30 x 1 = 30m

(c) Vv =UV + gt
Vv = 0 + 10 x 1 = 10m/s
Wilfykil answered the question on March 26, 2019 at 09:14


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