An example of a massbased system of units is a SI b US Custo

An example of a mass-based system of units is a. SI b. US Customary c. meters d. Kilograms The key to moving between mass and weight is a. W = Fd b. F = ma c. SI vs English Standard Units d. Online conversion calculators and a good cell signal The choice of coordinate system is based on a. The application and results needed b. Memorization of case studies and book examples c. The problem statement d. Trial and error A fundamental equation of dynamics is a. Vector sum of all forces and moments is equal to zero. b. Vector sum of all forces and moments is equal to m*a c. E = mc^2 d. A and c Some examples of fundamental units are a. Meters, kilograms and seconds b. Newtons, pascals, and watts c. Millimeters, grams and minutes d. Inches, feet, and pounds The number of significant figures reported a. Should be three in all cases b. Should be based on the least accurate measurement c. Is determined by the accuracy of the calculator d. Depends on your experience as an engineer Going from position to velocity to acceleration requires a. Successive applications of the derivative WRT distance b. Successive applications of the derivative WRT time c. Successive integration WRT distance d. Successive integration WRT time Going from Acceleration to Velocity to Position requires a. Successive applications of the derivative WRT distance b. Successive applications of the derivative WRT time c. Successive integration WRT distance d. Successive integration WRT time

Solution

1.      The kilogram (SI unit symbol: kg) is the base unit of mass in the International System of Units The kilogram is the SI base unit of mass and is equal to the mass of the international prototype of the kilogram

F = m a

2. The definition of mechanical work (as opposed to thermodynamic work) is that it equals a force against some resistance times the distance traveled while that force is being applied.

The equation for work is:

W = Fd

3. The form of the numerical equation for distance changes with the choice of coordinate system; but this is done deliberately to preserve the physical concept of distance. Hence choice of co ordinates are based on The application and the result needed.

4. The funadmental equal of dynamics Vector sum of all forces and moment is equal to 0, and E=mc2 Mass-energy equivalence states that mass is concentrated energy. In his theory of special relativity Einstein formulated the equation E=mc^2. There is a tremendous amount of energy in mass so the answer is option A and C