A student solving for the acceleration of an object has applied appropriate physics principles and obtained the expression a=a1+Fm where a1=3.00 meter/second2, F=12.0kilogram⋅meter/second2 and m=7.00kilogram. what is the value of a?

Complete Question

 Now if you look at the equation for acceleration  given in the question i.e

We see that evaluating it in terms of dimension it is  incorrect  instead the equation should be  

So in the solution below we will be making use of

The values of a is

Explanation:

From the question we are told that

    The  expression for the acceleration is  

     The value of  

     The values of    

      The values of m is  

substituting values

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

what type of charge does it have? negative