A child goes down a playground slide with an acceleration of 1.36 m/s^2.

1-Find the coefficient of kinetic friction between the child and the slide if the slide is inclined at an angle of 28.0 deg below the horizontal.

1 answer

force gravity down= mg sin28
friction down: mg*mu*cos28

netforce=mass*acceleration
mg(sin28-mu*cos28)=ma

solve for mu.