Projectile Motion shot over a cliff

[sw3etazngyrl]

1. A projectile is shot from the edge of a cliff 125m above ground level with an initial speed of 105m/s at an angle of 37.0 degrees with the horizontal. a) Determine time taken by projectile to hit point P at ground level. b) Determine range X of the projectile as measured from the base of cliff. At the instant just before the projectile hits point P, find c) the horizonal and vertical components of its velocity, d) the magnitude of the velocity, and e) the angle made by the velocity vector with the horizontal.

2. For c, how do you find the vertical/horizontal components? Should I use my answer for a to complete part c?

3. a) t=sqrt(2h/g)=sqrt(2*125m/9.81m/s^2)=5.05 s
b) x=105m/s * 5.05s=530 m

that's all i have so far. i don't know how to start c and the rest after that.

 

[Astronuc]

Refer to this -

http://hyperphysics.phy-astr.gsu.edu/hbase/traj.html#tra9

and in general -

http://hyperphysics.phy-astr.gsu.edu/hbase/traj.html