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What is the impact velocity of a rock thrown horizontaly from a cilff?
The impact velocity of a rock thrown horizontal from a cliff depends on two things, the initial speed of the rock (vi) and the height of the cliff (h). The final velocity (impact velocity) is represented by vfFor this formula, air resistance is neglected, and acceleration due to gravity is assumed to be 9.8 m/s2. The acceleration is positive here because down is being treated as the positive direction. You will get the same result if you use negative 9.8 m/s2 and make the height negative. sqr() means square root.vf = sqr(19.6h + vi2)For example if the rock was thrown off a 3 meter high cliff at 20 m/s, the impact velocity would be sqr(19.6 x 3 + 202), which would be sqr(58.8 + 202), which would be 21.42 m/s.The angle relative to the ground is the inverse tangent of sqr(19.6h)/viwhich in this case is tan-1( sqr(19.6 x 3)/20), which is tan-1(7.67/20) which is 21.0 degrees.
A sharp cliff caused by sudden movements along dip-slip faults is called a .?
A sharp cliff caused by sudden movements along dip-slip faults is called an earthquake. It causes the ground to shake for several seconds.
The sound wave is directed towards a cliff that is 680 meters away from the source of the sound An echo wave is heard 4 seconds after the wave is produced What is the period of the sound wave?
The time it takes for the sound to travel to the cliff and back as an echo is 4 seconds. Since the sound wave travels twice the distance to the cliff and back, the total distance traveled is 2 × 680 = 1360 meters. Using the formula speed = distance/time, we can calculate the speed of sound. The period of the sound wave is the time it takes for one complete cycle, which in this case is the time it takes for the sound to travel to the cliff and back, which we found to be 4 seconds.
How far away are you if it takes 15 seconds to hear an echo?
If it takes 15 seconds for an echo to be heard, the distance between you and the reflecting surface (such as a wall, cliff, or building) is approximately 2,250 meters (15 seconds multiplied by the speed of sound at sea level, which is about 343 meters per second).
Make a sentence of word cliff?
Cliff Richard is the best. the cliff
A squirrel drops a nut over a cliff what is the velocity of the nut after 3 seconds?
Ignoring air resistance, the velocity of any object that goes off a cliff is 29.4 meters (96.5 feet) per second downward, after 3 seconds in free-fall.
A stone is thrown horizontally at 8 ms from a cliff 78.4 m high how far from the base of the cliff will the stone strike the ground?
According 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
A ball is thrown horizontally from a cliff at a speed of 15 ms and strikes the ground 45 meters from the base of the cliff. How long was the ball in the air3?
The time the ball was in the air can be calculated using the horizontal distance it traveled and its initial horizontal velocity. Time = distance / velocity. In this case, time = 45m / 15 m/s = 3 seconds.
A rock is thrown from a cliff and hits the ground 5 seconds later at a distance of 50 meters from the cliff How high was the cliff?
Assuming you throw the rock horizontally off the cliff it drops down at the acceletrtion of gravity. height= 1/2 gt^2 With g = 9.8 m/sec and t = 5 seconds we have height = (1/2) (9.8)(5)(5) = 122.5 meters notice it has nothing todo with the 50 meter distance, which depends on the horizontal velocity.
A rock is dropped from the top of a cliff what is the velocity after 2 seconds 5 seconds 10 seconds?
Since the equation for time=sqrt(2h/g) set 2 seconds for time and 9.8 for gravity so 2=sqrt(2h/9.8) clear the sqrt by squaring both sides 4= 2h/9.8 9.8*4 =2h (9.8*4)/2 = height. now that you have the height, you can do v=distance/time v=height from the equation prior/2 seconds i hope that works..
A rock is dropped from a cliff and hits the ground 6.0 seconds later How high is the cliff?
176.4 meters
If a Rock is dropped off a cliff with an initial speed of 0 ms What is the rock's speed after 3 seconds in ms if it encounters no air resistance?
speed is decided by v = a(t), where t is your time variable and a is your acceleration constant. after 3 seconds, your velocity v = (9.8m/s2)(3s) = 29.4m/s
A monkey runs off the edge of a cliff He hits the water below 5m from the base of the cliff How fast was he running if the cliff was 10m high?
There are two major steps in solving this problem. First, we have to figure out how long it takes a monkey to fall 10m. Second, we divide the distance from the base of the cliff by the number of seconds to estimate the unfortunate simian's velocity. To get the time the monkey falls, (assuming this is on Earth with gravitational acceleration equal to 9.8 m / s), use the equation d = 4.9t2 . t = sqrt(d/4.9). Filling in the given value for d (10m) we get t = sqrt (10/4.9) which is about 1.43 seconds. If the monkey travelled outward 5m from the edge of the cliff in 1.43 seconds, the furry fellow was going 5m / 1.43s or about 3.5 m/s. Why the monkey chose to do the Acapulco Cliff Dive remains a mystery known only to him, and he is not talking.
A ball is thrown horizontally at 20 m s from the top of a cliff 50 meters high How far form the base of the cliff does the ball strike the ground?
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).
A ball is thrown horizontally at 20 meters from the top of a cliff 50 meters high How far from the base of the cliff does the ball strike the ground?
64 METERSA+
What does initial velocity means?
Initial velocity refers to the velocity of an object at the very beginning of its motion or in a particular interval of time. It is typically denoted as "u" in physics equations and is crucial for determining the subsequent motion and trajectory of the object. Initial velocity is an important parameter in analyzing various phenomena such as projectile motion, collisions, and more.
A ball is thrown horizontally from a cliff and hits the ground 4 seconds later 40 meters from the base of the cliff. How fast was the ball thrown?
The horizontal speed of the ball can be calculated using the equation: horizontal distance = horizontal speed * time. In this case, the horizontal distance is 40 meters and the time is 4 seconds. Therefore, the horizontal speed of the ball was 10 m/s.
