Today, Gigabytes and Terabytes are the most common terms being used to describe the size of a hard drive. But what are they? This is where it gets quite confusing because there are at least three accepted definitions of each term.
A force acting on an object can cause it to accelerate. The relationship between force, mass and acceleration is given by the equation. force = mass Ã acceleration. The stopping distance of a car depends on two factors-thinking distance and braking distance. Under normal driving conditions, the thinking and braking distance depend on the speed of the car.
You do not even need to know the mass of the earth, just that the acceleration due to gravity is g=9.8 m/s2 and that the weight of a mass m is mg. Then the force (mg) must equal the mass times the centripetal acceleration (mv2/R). Solving, v=[gR]1/2=7920 m/s which is about 17,700 mi/hr.