Wiki User
∙ 15y agoAccording to the Laws of Physics, Horizontal Velocity is unaffected by Vertical Velocity. Thus you need to first find how long it will take the stone to hit the ground.
Assume:
Acceleration due to gravity = 9.8 m/s^2
Velocity due to gravity = 9.8x m/s, where x is seconds
Displacement due to gravity = 9.8x^2 m, where x is seconds
Set Displacement = to 78.4m
78.4m = 9.8x^2 m
and solve for..
x = sqrt(8) = 2 sqrt(2)
Then to find displacement horizontally, multiply time*velocity horizontally
distance from base of cliff = (2 sqrt(2))s * 8 m/s = 16 sqrt(2) m
Wiki User
∙ 15y ago64 metersIf a ball is thrown horizontally at 20 m/s from the top of a cliff that is 50 meters high, the ball will strike the ground 64 m from the base of the cliff (20m/s x 3.2 s).
64 METERSA+
The ball was thrown horizontally at 10 meters per sec, and the thrower's arm was 78.4 meters above the base of the cliff.
10 m/s
Answer: 44 meters
64 metersIf a ball is thrown horizontally at 20 m/s from the top of a cliff that is 50 meters high, the ball will strike the ground 64 m from the base of the cliff (20m/s x 3.2 s).
64 METERSA+
The ball was thrown horizontally at 10 meters per sec, and the thrower's arm was 78.4 meters above the base of the cliff.
10 m/s
Answer: 44 meters
Answer: 3 seconds
"3.2" or "3.20" please put all of that
An object thrown upward at an angle An object that's thrown horizontally off a cliff and allowed to fall
the time it takes to get to ground is s = 1/2 at^2 where a is gravity acceleration of 9.8 m/s/s and s is 50 meters and t^2 is time squared.Solve for time t = 3.2 secondsThe horizontal distance from base of cliff is h = vt where h is distance and v is velocity = 20 m/sh = 20 x 3.2 = 64 meters
the time it takes to get to ground is s = 1/2 at^2 where a is gravity acceleration of 9.8 m/s/s and s is 50 meters and t^2 is time squared.Solve for time t = 3.2 secondsThe horizontal distance from base of cliff is h = vt where h is distance and v is velocity = 20 m/sh = 20 x 3.2 = 64 meters
Using the horizontal distance and horizontal velocity of the ball, you can calculate the time it took for the ball to reach the ground. Then, you can use the time and the vertical acceleration due to gravity to find the height of the cliff using the equation: height = (1/2) * gravity * time^2. In this case, the height of the cliff would be approximately 11.3 meters.
If it was thrown horizontally, it had an initial velocity of 10 meters/sec parallel to the ground. (It traveled 40 meters in 4 secs with no acceleration. x=vt) It also took 4 secs to travel vertically. It started with a vertical velocity of 0 m/s. Using x=v0 + (1/2) a t2 a = -g ( Acceleration due to gravity 9.8m/s2) x=0-(1/2)g*16 = -8 * 9.8 = -78.4 m It fell 78.4 meters before coming to a stop.