- #1
TheGreenMarin
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Homework Statement
A cricket ball is thrown vertically upwards and returns in 4.2s. Find (a)The initial velocity of the ball
(b)The maximum height reached
Homework Equations
v=u+at
v^2=u^2+2as
s=(u+v)/2 multiplied by t
s=ut+1/2at^2
The Attempt at a Solution
s=?
u=?
v=?
a=9.81ms^-2 (negative traveling upwards)
t=4.2s
I could not start the question because to use SUVAT equations at least 3 of the 5 letters must have values to be put into a equation.