Question about Velocity, time, height

[iSaad]

Homework Statement

Q: An object thrown upwards at V0 reaches a maximum height of 100 m.
a. Calculate the initial velocity of V0.
b. Calculate the total flight time.
c. Calculate the height of the object when v=30 m/s.

Homework Equations

That is my question what equations do i need to solve this.

The Attempt at a Solution

Sorry i couldn't attempt because i couldn't find the appropriate equation.

 

[NemoReally]

Look up SUVAT equations - http://en.wikipedia.org/wiki/Equations_of_motion#Uniform_acceleration .

choose the one that makes use of the information you have to find what you need.

 

[iSaad]

Look up SUVAT equations - http://en.wikipedia.org/wiki/Equations_of_motion#Uniform_acceleration .

choose the one that makes use of the information you have to find what you need.

Thanks!