(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A particle, starting from point A in the drawing (the height at A is 3.00 m), is projected down the curved runway. Upon leaving the runway at point B, the particle is traveling straight upward and reaches a height of 7.53 above the floor before falling back down. Ignoring friction and air resistance, find the speed of the particle at point A.

Ok the picture looks like this (I apologize for the slightly craptastic drawing):

o <--ball (at 7.53 m)

^

| A (3.00 m)

| /

*B* /

L___/

2. Relevant equations

Conservation of energy

PE = mgh

KE = (1/2)mv^2

3. The attempt at a solution

I started off with the basic equations of kinematics (like finding displacement based on v0 and vf) only to be told "You do not need to know the speed or vertical position of the particle at point B in order to solve this problem." Therefore, I am clueless where to go from here.

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# Homework Help: Projectile ball on curved runway (conservative forces)

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