hey guys, i have this quesiton im diong, i got allt he answers but theres one prob(adsbygoogle = window.adsbygoogle || []).push({});

Question:

A projectile is fired at 50 m/s and 60 degrees along a level surface.

a) Find the velocity and displacement VECTORS at t = 1.0 s

i used v2 = v1 + at

v2 = 43.3 + (-9.8) (1)

v2 = 33.5 m/s

thats the velocity at 1 second

now displacement i used

d = v1t + 1/2 at squared

i got y = 43.3 (1) + 1/2 -10 (1) squared

to get

displacement = 38.4 meters

ofcourse the y velocity i got it from : 50 sin 60 = 43.3 m/s and x velocity 50cos60 = 25 m/s as you know

but teh teacer said those aer right numbers but he ased for VECTORS so he wants 33.5 and an angle beside it i assume, i am lost now, i need help finding the displacement and velocity VECTORS :D

thanks guys!

---

i posted this in the other forum too , didnt know which ones more right lol thanks, but need it soon

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

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: Projectile Motion (Displacement and Velocity vector)

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