If the mass of an object increases, predict what will happen to the coefficient of sliding friction. 1.the coefficient of sliding friction will increase. 2.the coefficient of sliding friction will decrease

2.The coefficient of sliding friction will decrease

Explanation:

Since Fk= μk N

μk= Fk/N

Where Fk= frictional force

μk= coefficient of friction

N= normal reaction

N= mg

Increasing the mass m will increase the value of the normal reaction N thus decreasing the value of the coefficient of sliding friction.

From the above it follows that increasing the mass of the object will certainly decrease the magnitude of the coefficient of sliding friction of the object.

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.