Question

A 1.0- kg wheel with moment of inertia about its axis I = MR^2 is rolling without slipping on the horizontal ground. Its center of mass has an acceleration of 5.0 m/s^2. The frictional force exerted on the wheel from the ground is ?

Answer 1

As the only force actiong on the wheel is friction, according to the second Newton's law:

$$F_{fric}=ma$$

where $a -$ acceleration of the center of mass.

Then,

$$F_{fric}=ma=1*5=10 N$$