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A diver jumps from a 48ft cliff into the ocean with an initial velocity of 8 seconds when does he hit the water?
Wiki User
∙ 14y ago
"8 seconds" is not a velocity.
Wiki User
∙ 14y ago
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A person jumps off a diving board 4.0m above the water's surface into a pool the person's downward motion stops 2.0m below the surface of the water estimate the avg. decleration of the person under wa?
so what you need to do is find the velocity that the person enters the water and then use the equation v sub final squared = v sub initial squared + 2*acceleration(final distance-initial distance). final velocity is zero, find the initial velocity yourself and use 2 as the final distance where the initial distance is 0, solve for acceleration. Easy way: the decelleration would have been twice that provided by gravity because the diver decellerated to zero in half the distance of the dive. The diver starts at zero and hits max velocity in 4 meters then goes from max velocity to zero in 2 meters. 2 x 9.81 m/s2 = ___
What effect terminal velocity and air resistance have on a sky diver when he opens his parachute?
Air resistance increases and terminal velocity decreases when the parachute has opened.
A diver springs upward with an initial speed of 1.8meters per second from a 3.0 meter board what is the velocity when the diver reaches the water What is the highest point he reaches above the water?
Vf^2 = Vi^2 +2ad = 1.8m ^2 + 2(-9.8m/s^2)(3.0m) =62.04m/s Vf= sqrt(62.04m/s) =-7.9m/s
What is the skydivers velocity after two seconds?
We'll assume you mean 2 seconds AFTER he's jumped from the plane. A good estimate would be 9.8m/s times 2 (9.8m/s/s times 2 seconds -- the standard value of the acceleration due to gravity). In two seconds, the velocity would be low enough that air resistance could probably be ignored for purposes of answering your homework. So try 19.6 m/s, unless your teacher gave your data on the air resistance of the sky diver.
A skydiver who weighs 500 N reaches terminal velocity of 90kmh the air resistance on the diver is then?
250N
A cliff diver plans to jump off a cliff into a river and needs to know the velocity with which she will strike the water. it takes a rock 2.5 seconds to reach the water. what'ld her final velocity be?
80 ft / sec ~ 55mph The above ignores air resistance which will not be significant at this speed.
What are the answers to 14.10 punchline Algebra book b marcy math works?
A diver springs from the edge of the ocean with an initial upward velocity of 8 ft/s. How long will it take the diver to reach the water?
How tall is cliff diver at splish splash water park?
473.69 ft. exactly i measured it with my ruler
Suppose a diver leaps from the edge of a cliff 80 feet above the ocean with an initial upward velocity of 8 feet per second How long will it take the diver to enter the water below?
Assuming that acceleration dut to gravity is 32 ft/sec2 and that air resistance is insignificant, the answer is 2.5 seconds. To show work, at 8 ft/sec v = at = 32 t t = 1/4 second jumping up and v = 0 before free fall s = 1/2 at^2 = 16t^2 = 16x.25 x .25 = 1 foot so diver free falls 81 feet 81 = 1/2 at^2 so t = 2.25 sec 2.25 + .25 = 2.5 sec
A person jumps off a diving board 4.0m above the water's surface into a pool the person's downward motion stops 2.0m below the surface of the water estimate the avg. decleration of the person under wa?
so what you need to do is find the velocity that the person enters the water and then use the equation v sub final squared = v sub initial squared + 2*acceleration(final distance-initial distance). final velocity is zero, find the initial velocity yourself and use 2 as the final distance where the initial distance is 0, solve for acceleration. Easy way: the decelleration would have been twice that provided by gravity because the diver decellerated to zero in half the distance of the dive. The diver starts at zero and hits max velocity in 4 meters then goes from max velocity to zero in 2 meters. 2 x 9.81 m/s2 = ___
The drag force on a falling sky diver is also known as?
Terminal Velocity.
What is the speed of a diver hitting the water from a height of ten meters?
Terminal velocity
The drag force acting on a falling sky diver is also known as?
Terminal Velocity.
Is it possible for the sky diver in this picture to be falling at a constant velocity?
Any skydiver can fall at a constant velocity. This is called the, "Terminal velocity". Since we do not have the picture that you mention, nothing more can be assumed.
What effect terminal velocity and air resistance have on a sky diver when he opens his parachute?
Air resistance increases and terminal velocity decreases when the parachute has opened.
A diver springs upward with an initial speed of 1.8meters per second from a 3.0 meter board what is the velocity when the diver reaches the water What is the highest point he reaches above the water?
Vf^2 = Vi^2 +2ad = 1.8m ^2 + 2(-9.8m/s^2)(3.0m) =62.04m/s Vf= sqrt(62.04m/s) =-7.9m/s
How long will it take for a 200 lb man to fall 27000 feet?
Anything, regardless of weight, falls at 32 feet per second squared, until it reaches terminal velocity. Assuming no air resistance we need SQRT(27000/32) or 29.05 seconds to splat. However, Wikipedia puts the terminal velocity of a sky diver at 180.45 feet/second. That speed would be reached in about 6 seconds. 27000/180.45 = 149.63 seconds or 2 and a half minutes. So you're looking at 2 minutes 33 seconds +/- 3 seconds.
