Question
9. A toy is thrown vertically downwards from the top of a building and has an initial velocity of 1.5 m/s. If the height of the building is 25 m, determine
i. the velocity with which the toy hits the ground
ii. the time taken for the toy to fall
i. the velocity with which the toy hits the ground
ii. the time taken for the toy to fall
Answers
Steve
h = 25 - 1.5t - 4.9t^2
v = -1.5 - 9.8t
set h=0 and solve for t
use that t to get the velocity at impact.
v = -1.5 - 9.8t
set h=0 and solve for t
use that t to get the velocity at impact.