Question

In a physics lab, you apply a 34.5 N rightward

force to a 4.52 kg cart to accelerate it across a
horizontal surface at a rate of 1.28 m/s/s.
Determine the friction force acting upon the cart
and coefficient of friction.

Answer 1

Step-by-step explanation:

The frictional force is

=

28.71

N

Step-by-step explanation:

Let

F

r

=

frictional force

and

F

=

the force applied

The net force acting on the object is

(

F

−

F

r

)

By Newton's second Law

(

F

−

F

r

)

=

m

a

where,

a

=

the acceleration

and

m

=

mass of the cart

So,

F

−

F

r

=

m

a

F

r

=

F

−

m

a

=

34.5

−

4.52

⋅

1.28

=

28.71

N