- #1
SS2006
- 80
- 0
hey guys, i have this question I am diong, i got allt he answers but there's one prob
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!
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i posted this in the other forum too , didnt know which ones more right lol thanks, but need it soon
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