Answer:
I cant understand the question well but i will tell u how to solve it
first apply f = ma eqaulation vertically...then u will get an r = mg which means normal upward force = weight of the object (to find weight multiply mass by 9.81)
after that use friction eqaution which is
(mu) is the coefficient of friction and (r) is the vertical normal force then by substituting value you can get an answer for the friction
the use
by using the above eqaution you can get an answer for acceleration...
hope you can understand...