What the Hypothesis Is - Essay Example

In linear motion, speed is usually given as distance traveled per the time taken.
Therefore,
S=D/T
Time= T hours, Speed =V km per hour
To find the distance traveled in km, we make D the subject of the equation.
D=(VxT) km

A frictionless object in free fall experiences a downward acceleration with a magnitude, g, whereg=9.80m/s^2. Acceleration is produced by the gravitational force that the earth exerts on the object, therefore from the 2nd Law of Newton an object in free fall gives an acceleration as
a=W/M m/s^2, Where W is the weight of the object and M is the mass (Schwarz, et al, 1998)

Therefore, acceleration in free fall is equivalent to the gravitation pull of the earth
a=g=9.80m/s^2

Figure 1 sample free-fall object
To find the average of 3.2, 3.4, 3.7, 3.9, and 4.2
average=sum/(total number )
Average=( 3.2+ 3.4+ 3.7+ 3.9+ 4.2)/5
=3.68
What is the square root of 60? Write in decimal format and round to three significant figures

Let x be the square root of 60:-
x=√60
=7.745966
=7.75 to 3 significant figures. Read More