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How far does a plane fly in 15 seconds while its velocity is increasing?
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∙ 12y ago
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∙ 12y ago
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What would be the change in velocity for a 10 gram object dropped from the roof of a 20 meter building if it takes 2 seconds to reach the ground Hint acceleration due to gravity is 98 ms²?
In two seconds of fall, the speed increases 19.6 meters (64.4 feet) per second. The magnitude of velocity increases by that amount, while the direction of velocity doesn't change.
How far does a plane fly in 15 seconds while its velocity is increasing from 75 meters per second to 145 meters per second at a uniform rate of acceleration?
Use this equation.... x= x0 + V0*t + a*t^2 x0 = 0 v0 = 75 m/s a = (145-75)/15 = 4.67 m/s^2 t = 15 s x = 0 + 75 m/s * 15s + 4.67 m/s^2 *15^2 x = 2176 m
How far does a plane fly in 15 s while its velocity is changing from 145 to 73 at a uniform rate of acceleration?
Since the acceleration is uniform you can add the starting and ending velocities and divide by two the average speed 145 + 73 = 218 218/2 = 109 (units not given so I assume Miles per Hour) To convert to Feet per seconds 109 mph X 5280 feet in a mile / 3600 seconds in an hour = 159.866667 feet per second multiply the above by 15 seconds and you get 2398 feet
How many feet in one sec?
Feet refers to a distance while seconds is time, so you can't say that there are a certain number of feet in one second. You can however say that you travel a certain number of feet in one second, but that number depends on the velocity that you are traveling at.
Are the wedge and inclined plane the same thing?
While a wedge and an inclined plane are not the same things, a wedge is a type of inclined plane. However, not all inclined planes are considered to be wedges.
What is average radial velocity of Mars?
The average radial velocity of Mars is 1.85° that is inclined to the ecliptic. While its inclination to the Sunâ??s equator 5.65° and its inclination to an invariable plane is 1.67°.
How can speed be decreasing but velocity be increasing of a certain object?
Speed is distance covered divided by time, while velocity is displacement divided by time. Velocity is a vector quantity while speed is not. An example of when speed would be decreasing yet velocity would be increasing occurs when a car driving in reverse slows down. If it was going 30m/s and then slowed town to 10m/s, the speed would be slowing down. However, since the car is moving along the negative x axis, its initial velocity vector would be -30m/s and it would decellerate to a velocity of -10m/s. The example isn't great, but you can get the picture that the way that this is possible is by the fact that speed is a scalar quantity while velocity is vector.
What are the significant similarities and differences between velocity and acceleration?
The differences are that acceleration refers to the rate of change in velocity of an object while velocity is the rate of displacement of an object, and acceleration is measured in meters per squared seconds while velocity is measured in meters per second. On the other hand, they both use time as a component and they are both vectors in nature.
What is a ramp that decreases the force required to move an object while increasing the distance the object travels?
simple machine
Does paper air plane wingspan increases glide distance?
yes increasing wingspan does increase glide distance.. the reasons are complicated but it has to do with increasing lift while simultaneously decreasing induced drag
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The result of breaking the escape hatch on a plane would depend upon the altitude and velocity of the plane. Under some circumstances, the air can get sucked out of the plane, which is very dangerous. If you break the hatch while the plane is still on the runway, then possibly you will be charged with vandalism.
How far does a plane fly in 15 seconds while its velocity is increasing from 75 ms to 145 m s at a uniform rate of acceleration?
If it accelerates from 75 m/s to 145 m/s at a uniform rate, then its average speed duringthe acceleration is 0.5(145+75) = 110 m/s.Distance covered in 15 sec at average speed of 110 m/s = (15 x 110) = 1,650 m = 1.65 km.
While launching a rocket of mass 2 104 kg a force of 5 105 is applied for 20 seconds The velocity attained by the rocket at the end of 20 seconds?
The answer for that one is 500 m/s
What would be the change in velocity for a 10 gram object dropped from the roof of a 20 meter building if it takes 2 seconds to reach the ground Hint acceleration due to gravity is 98 ms²?
In two seconds of fall, the speed increases 19.6 meters (64.4 feet) per second. The magnitude of velocity increases by that amount, while the direction of velocity doesn't change.
How far does a plane fly in 15 seconds while its velocity is increasing from 75 meters per second to 145 meters per second at a uniform rate of acceleration?
Use this equation.... x= x0 + V0*t + a*t^2 x0 = 0 v0 = 75 m/s a = (145-75)/15 = 4.67 m/s^2 t = 15 s x = 0 + 75 m/s * 15s + 4.67 m/s^2 *15^2 x = 2176 m
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30 seconds or so, to fill up a jet fighter from a refueling tanker plane in mid air at 400mph!
Are speed and velocity different?
SPEED has the speed only; while VELOCITY has the direction and the speed.
