Answer :
Use Newton's Second law of motion and plug in what you know:
15sin30-friction=15a
15 times 9.8 times 0.5-15 times 2.2 =Friction
So Friction = 73.5 -33, or 40.5 Newtons
Hope this helps!
15sin30-friction=15a
15 times 9.8 times 0.5-15 times 2.2 =Friction
So Friction = 73.5 -33, or 40.5 Newtons
Hope this helps!