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What is 150 feet squared in meters squared?
Just over 13.9 m2
What is 8x squared over 4x squared?
2
A motorcycle traveling at 15 meters per second accelerates at a constant rate of 4.0 meters per second squared over a distance of 50 meter.how long does it cover 50m distance?
D = V0 t + 1/2 A t250 = 15 + 1/2 (4) t235 = 2 t2t = sqrt(35/2) = sqrt(17.5) = 4.183 seconds (rounded)
If a trucks brakes are applied for 2 seconds giving it acceleration of -3.1 ms2 what will the trucks new speed be in ms?
No starting velocity was given, so I can't give a correct answer, but I can answer part of the question. Given an acceleration and a time through which an object accelerates, you can determine the change in velocity. Acceleration is just the change of velocity over a period of time. Since we have an acceleration of -3.1 meters per second squared, acting for two seconds, we have a change in velocity of -6.2 meters per second. Take the original velocity and subtract 6.2 meters per second to get the answer.
What is a car's acceleration if it increases its speed from 5 meters per second to 20 meters per second in 3 seconds?
In general, the acceleration during that time interval could vary considerably. However, we can calculate the average acceleration during the interval. The change in speed is 20 meters per second - 5 meters per second = 15 meters per second, and this change in speed occurs over a 3 second interval. Thus the average change in speed over this interval is 15 meters per second/ 3 seconds = 5 meters per second per second = 5 meters/second2
