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Ignoring the effects of air resistance what is the speed in of the object after falling 3 seconds?

Assuming (1) the object starts from rest, (2) air resistance is insignificant, the object speeds up by about 9.8 meters/second every second. That's the strength of the gravitational field. Just multiply this acceleration (9.8 meters/second2) by the time.


If you run a 200 meter race in 22.78 seconds how fast are you going in miles per hour?

19.64 MPH. At that pace it would take 183.30 seconds to run one mile. There being 3600 seconds in an hour, dividing 183.30 into 3600 gives you 19.64. 200 meters divided by 22.78 seconds = 8.78 meters per second 8.76 meters per second x 3600 seconds per hour = 31 607 meters per hour 31 607 meters per hour divided by 1 609.344 meters per mile = 19.64 miles per hour


What is the speed of a hockey puck moves 45 meters in 5 seconds?

Speed in physics is called velocity what you are looking for when you are talking about speed/velocity you are looking for an answer with the units being "distance/time" such as "miles/hour" in this case you are using the distance measurement of meters and the time unit of seconds therefore you want an answer in "meters/second." Ergo, you divide the unit of distance by time so it would be "45 meters/5 seconds" which would simplify to "9 meters/second" where the symbol "/" can be pronounce as "per" so it could be written "9 meters per second" I hope you did just get the answer, but rather some of the thought process of the issue.


What is the instantaneous speed of an object 2 second after being dropped in a vacuum?

In a vacuum, the instantaneous speed of an object 2 seconds after being dropped would be approximately 19.6 m/s, as the acceleration due to gravity is 9.8 m/s^2 and the object would have been accelerating for 2 seconds.


What is the velocity of freely falling objects 5 seconds after being dropped?

The velocity of a freely falling object 5 seconds after being dropped is approximately 49 meters per second (m/s) downwards. This is the velocity an object reaches due to the acceleration of gravity (9.8 m/s^2) acting on it.


What is the centripetal acceleration of an object being swung on a string with a radius of 5 meters at a velocity of 4 meters a second?

Use the formula a = v2 / r, with v = velocity (speed, actually) in meters/second, r = radius in meters. The answer will be in meters per square second.


How many second are there in one microsecond?

One microsecond is one one-millionth of a second, or 0.000001 seconds. Being that it is considerably shorter than a second, the length of a second cannot be contained within this span of time.


How many second is a human being born in the world?

Well we all know that the Human Population is still growing. Well for every 7 seconds and human being is born and for about every 12 seconds a human being dies.


How far is geographic second?

In latitude, 1 second is equivalent to roughly 30.8 meters. In latitude, 1 second is equivalent to roughly 30.8 meters along the equator, and it shrinks steadily to zero at the poles. In general, it's 30.8 meters multiplied by the cosine of the latitude where it's being measured.


What is the conversion for 60 feet per minute into meters per second?

1 foot = 0.3048 meter 1 minute = 60 seconds60 feet/minute x 1 minute/60seconds x 0.3048 meter/foot= 0.3048 meter/secondyou may try using the online converter linked below next time.


Why you have second square in the unit of acceleration?

Square seconds, by itself, doesn't make much sense. On the other hand, please note that acceleration is not the same as speed or velocity, therefore you would expect the units to be different between the two. Speed or velocity is measured in meters / second; since acceleration is the change of rate of a velocity (in symbols: dv/dt), its units are velocity / time. Using SI units, that would be (meters / second) / second, and this is commonly written as meters / second2, which makes sense since the seconds appear twice in the denominator.


If you fill a container with 0.8 m3 per second how long will it take to fill a 12513m3 container?

A container being filled at 0.8m3 per second will fill 12513m3 in 15641.25 Seconds or 4 Hours, 19 Minutes, and 58 Seconds.