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A different way to interpret the question is the difference between m's and m^2'sM on its own stand for metres, and is a measurement of length. M^2 stands for metres squared, and is a unit of measurement for an area defined by a shape.
Example - you have a square. you measure the sides of the square and find that they are all two metres. Working from that information, you then work out that the area of the square is 4^2m, or four metres squared.
If I interpret the question correctly, the first is a unit of measurement for distance covered per unit of time (velocity or speed) while the second is the unit for area covered per unit of time.
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RossA different way to interpret the question is the difference between m's and m^2'sM on its own stand for metres, and is a measurement of length. M^2 stands for metres squared, and is a unit of measurement for an area defined by a shape.
Example - you have a square. you measure the sides of the square and find that they are all two metres. Working from that information, you then work out that the area of the square is 4^2m, or four metres squared.
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How much work must be done on a 5 kg skateboard to increase its speed from 2 m per s to 10 m per s?
Kinetic energy = 1/2 M V2At 2 m/s, the board's KE is [ (1/2) (5) (2)2 ] = 10 joules.At 10 m/s, the board's KE is [ (1/2) (5) (10)2 ] = 250 joules.The difference is 240 joules, which is the work you have to put into itto give it the additional kinetic energy.
How much work must be done on a 1 000-kg car to increase its speed from 1 m s to 2 m s?
Kinetic energy = 1/2 M V2At the lower speed, the car's KE is (500) (1)2 = 500 joulesAt the higher speed, the car's KE is (500) (2)2 = 2,000 joulesThe difference is the energy i.e. the work you have to put into itto raise the speed from 1 m/s to 2 m/s.(2,000 - 500) = 1,500 joules
How to find the side of the square with an area of 256m squared?
A = s^2 256 m^2 = s^2 √(256 m^2) = √(s^2) 16 m = s Thus, the side of the square has a length measure of 16 m.
What is the unit of E in E equals mc2?
Units Units of 'E' are kg m^2 s^-2 or kg(m/s)^2 or kg m^2 / s^2 or kg m ( m/s^2) In words it is a mass(kg) multiplied to distance (m) multiplied to acceleration (ms^-2). When Basic S.I. units are arranged in this manner they are referred to a Joules.
Acceleration of gravity in meters per square second?
9.80665 m/s^2 Depending on where you are on the earth's surface the acceleration of gravity can vary by about 0.1 m/s^2. The average on earth though is taken to be 9.80665, in physics calculations 9.81 m/s^2, 9.8 m/s^2, or even 10 m/s^2 are often used. Note: 10 m/s^2 is actually a fairly good approximation and can speed up calculations significantly.
