If a 30-newton force is required to accelerate a 2-kilogram object at 10 meters per second?, over
a level floor, then the magnitude of the frictional
force acting on the object is
A. ON
B. 10N
C. 20N
D. 30N

B. 10N

Explanation:

In order to find the frictional force acting on the object, we can use the formula Force=mass x acceleration to find the difference in force between the event occurring in an environment with no friction and an environment with friction. Our given values are:

Force = 30N

Mass = 2kg

Acceleration = 10m/s/s

So for the formula we will first find the required amount of energy in a frictionless setting:

F = 2 x 10

F =20

This means that with the condition that there is no friction, a force of only 20N is required, but in real circumstances, a force of 30N was required. This means that the frictional force acting upon the object was 10N.

Hope this helped!

statement #3 on andre"s list is false.

the answer is 100. i just did this lesson and got a 100% on it. : )

-fishtank