How Do You Calculate the Initial Velocity of a Projectile?

[TWM]

A ball is thrown at a 45 degree angle and lands 90 meters away. What was the intial velocity?

Tanner

 

[Dick]

Offhand, I don't know. Read the rules of the forum. Write down some kinematical equations and explain what's confusing you about the question. Split the motion into x and y components.