Physics
posted by Anonymous .
A stone is thrown from a cliff top with a vertical velocity of 50 m/s and horizontal velocity of 20 m/s.
What is its resultant velocity?
At what angle above the horizontal is it thrown?

Xo = hor. = 20m/s.
Yo = ver. = 50m/s.
tanA = Yo / Xo = 50 / 20 = 2.5,
a = 68.2 Deg.
Vo = Xo / cosA = 20 / cos68.2 = 53.85m/s @ 68.2 deg.
Respond to this Question
Similar Questions

physics
A football is thrown horizontally with an initial velocity of (16.5 m/s). Ignoring air resistance, the average acceleration of the football over any period of time is (9.81 m/s2). Find the magnitude and direction of the velocity at … 
physics
3)A soldier throws a grenade horizontally from the top of a cliff. Which of the following curves best describes the path taken by the grenade? 
physics
A stone is thrown with an initial speed of 15 m/s at an angle of 37 above the horizontal from the top of a 35 m building. If g = 9.8 m/s2 and air resistance is negligible, then what is the magnitude of the vertical velocity component … 
Physics
A stone is thrown horizontally from the top of a 25.00 m cliff. The stone lands at a distance of 40.00 m from the edge of the cliff. What is the initial horizontal velocity of the stone? 
physics
A stone thrown off a bridge 20 m above a river has an initial velocity of 12 m/s at an angle of 450 above the horizontal. a. What is the range of the stone? 
phyiscs
A stone is thrown horizontaly from the top of a 25.00m cliff. The stone lands at a distance of 40.00 m from the edge of the cliff. What is the horizontal velocity of the stone? 
physics
a physics book is thrown horizontal at a velocity of 10.0m/s from the top of a cliff 78.4 m high. a). how long does the stone take to reach the bottom of the cliff? 
Physics
From the top of a cliff with 80 m height a stone is thrown vertically and finally hit the surface of ocean. Initial velocity of stone is 40 m/s. Find: (a) time to reach to max height. (b) how high goes from surface of ocean? 
physics
A stone is thrown horizontally outward from the top of a bridge, the stone is released 19.6meter above the street below.the initial velocity of the stone is 5.0m/s.determine the (a)total time that the stone is in the air (b)magnitude … 
Physical
At t = 0 s time a stone is thrown from the top of a cliff above a lake. Another stone is thrown down from the same point , 1.6 s later , with a initial velocity of 32.0 m / s. The two stones hit the water in one instant. Determine …