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

A night somebody pushes a derelict car horizontally off a 45m high cliff top at 2.0 ms^-1.

(a) How long does it take to hit the ground? (g=10ms^-2)

(b) How far from the base of the cliff does it land?

2. Relevant equations

The answer to (a) is 3.0s and (b) is 6.0m

3. The attempt at a solution

For (a) I tried s = ut +.5at^2. Hence 45 = 2t+.5(10)t^2 but the answer was not correct.

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Motion & Projectiles Help Please

**Physics Forums | Science Articles, Homework Help, Discussion**