- #1
Ryukouki
- 4
- 0
A stone is thrown upward from the top of a 20 m high cliff at an angle of 25 degrees. The stone has an initial velocity of 15 m/s. Make the BASE of the cliff the origin. (a) Write out the position, velocity, and acceleration vectors for the stone. (b) What is the magnitude of the velocity of the stone 3 s after it is launched?
I can understand what is being asked, but not exactly sure on how to reach the answer. I feel like it has do do with finding the components V(0)x and V(0)y with the V(0)cos(θ) and V(0)sin(θ) functions...
Thank you so much in advance! :)
EDIT: Main formulas:
Three key variables (displacement, time, velocity) lead to three key relationships relating each pair:
velocity & time:
v=v0+atdisplacement & time:
x=x0+v0t+(1/2)at^2velocity & displacement:
v2=v^20+2aΔx
I can understand what is being asked, but not exactly sure on how to reach the answer. I feel like it has do do with finding the components V(0)x and V(0)y with the V(0)cos(θ) and V(0)sin(θ) functions...
Thank you so much in advance! :)
EDIT: Main formulas:
Three key variables (displacement, time, velocity) lead to three key relationships relating each pair:
velocity & time:
v=v0+atdisplacement & time:
x=x0+v0t+(1/2)at^2velocity & displacement:
v2=v^20+2aΔx