Estimate the time an object takes to fall from a height of 200 m using the formula

Question

T=0.45 square root of H
Where t=time in seconds

h=hight in metres

Answer 1

Formula for time

T=0.45 √ H

Here H is the hight in metres

Substitute  200 m for H

T=0.45 √ 200

  =0.45 √ 100*2

  =0.45 *10√ 2

  =4.5√ 2 sec