- #1
thushanthan
- 32
- 0
Projectile motion...?
An artillery shell is fired with an initial velocity of 300 m/s at 55 degrees above the horizontal. It explodes on mountainside 42 s after firing. If x is horizontal and y is vertical, find the (x,y) co-ordinates where shell explodes?
I used rf=ri+vvt+1/2 at2
where ri=0
vi=300 m/s
a=-9.8
t=42-0=42s
and theta = 55 degrees ...
I want to know whether my way is correct ? If it is wrong please provide any suggestions... I don't need the full solution...
Homework Statement
An artillery shell is fired with an initial velocity of 300 m/s at 55 degrees above the horizontal. It explodes on mountainside 42 s after firing. If x is horizontal and y is vertical, find the (x,y) co-ordinates where shell explodes?
Homework Equations
The Attempt at a Solution
I used rf=ri+vvt+1/2 at2
where ri=0
vi=300 m/s
a=-9.8
t=42-0=42s
and theta = 55 degrees ...
I want to know whether my way is correct ? If it is wrong please provide any suggestions... I don't need the full solution...