physics
posted by Mike .
An object is launched horizontally from a cliff. The cliff is 80m high and the object has an initial velocity of 50m/s. Find the initial x and y velocity and the final x and y velocity

Xo = 50 m/s
Yo = 0.
h = Vo*t + 0.5g*t^2 = 80 m.
0 + 4.9t^2 = 80
t^2 = 16.33
Tf = 4.04 s. = Fall time.
Y = Yo + gt = 0 + 9.8*4.04 = 39.6 m/s =
Final Y velocity.
X = 50 m/s = Final X velocity
NOTE: The hor. component of velocity does not change.
Respond to this Question
Similar Questions

Science ( physics )
A balloon is rising with a velocity of 4.9 m/sec releases an object from height of 96 m. a) How long after its release will the object reach the ground? 
cal
let s(t)= 16t^2 + 50 represent the distance in ft. from the ground of an object t seconds after initial velocity of the object? 
Physics
A cannon placed at the top of a 100.0 m high cliff fires horizontally to a platoon of Hussars situated initially 1.0 km away from the base of the cliff. At what initial velocity should the cannon shell be fired assuming the hussars … 
physics
An object is thrown straight down off of a cliff with a velocity of 18m/s. a) What is the object's velocity after 15s? 
physics
A rock is dropped from a treetop 19.6 m high, and then, 1.00 s later, a second rock is thrown down. With what initial velocity must the second rock be thrown if it is to reach the ground at the same time as the first? 
physics
A missile is fired horizontally with an initial velocity of 300 m/s from the top of a cliff 200.0 meters high. a. How long does it take the missile to reach the bottom the cliff? 
physics
A missile is fired horizontally with an initial velocity of 300 m/s from the top of a cliff 200.0 meters high. a. How long does it take the missile to reach the bottom the cliff? 
Physics
A cannon ball is fired horizontally with a velocity of 50m/s from the top of a cliff 90m high,after how many seconds will it strike the plane at the foot of the cliff.at what distance from the foot of the cliff will it strike and with … 
Physics
A cannon ball is fired horizontally with a velocity of 50m/s from the top of a cliff 90m high,after how many seconds will it strike the plane at the foot of the cliff.at what distance from the foot of the cliff will it strike and with … 
Science
A cannon ball is fired horizontally with a velocity of 50m/s from the top of a cliff 90m high,after how many seconds will it strike the plane at the foot of the cliff.at what distance from the foot of the cliff will it strike and with …