physics- force question pt 2. please help :)

Question

A child is pulling a wagon by the handle. This force is applied through the handle and acts on the wagon at an angle of 35° above horizontal. If the normal force on the wagon is 76.9N and the coefficient of kinetic friction is 0.53. Calculate the kinetic friction force acting on the wagon.

Report your answer:
in terms of Newtons. Do not include units in your answer. They will be assumed to be N.
to a precision of tenths of a N. Use a format like ##.# in your answer.
to an accuracy of 0.2 N. Answers within 0.2 N of the correct answer will be tolerated.

Answer 1

f = force of kinetic friction = ?

 

N = normal force = 76.9 N  [given]

 

μ_k = coefficient of kinetic friction = 0.53  [given]

 

f = μ_kN = (0.53)(76.9 N) = 40.76 N