Question

A ball is thrown vertically upwards with a speed of 0.5 m/s. How high will will it go before it begins to
fall? How long will it take to reach that height

Answer 1

Answer:

t = 0.5/9.8 = 0.051 s = 52 ms.

Answer 2

Answer:

given:

u=0.5m/s

g=9.8m/s^2(it is taken to be negative since body is going against the gravity )

v=0

s=xv^2-u^2=2gs

(0)^2-(0.5)^2=2(9.8)S

-(0.5*0.5)=-2*9.8*S

s=0.5*0.5/2*9.8=0.012m is answer