For the following dimensional equation, find the base dimensions of the parameter f. mm" = a cos(fl) solution

.

Explanation:

Given that

MM''= a cos(fL)

We know that all trigonometric function are dimensional less.So fL should be dimension less quantity.

Property                                      Dimension

Length                                            L

Mass                                              M

Force                                            

Acceleration                              

Velocity                                              

Torque                                          

Time                                                    

So in the given question ,dimension of L is L so the dimension of f will become .

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)

catya your not at all which answer i've seen you do this on another question!