...backpack with a force of 100N? Suppose you carry your books in a backpack with wheels. IF you pull on the backpack with a force of 100N at an angle of 37 degrees. what is the acceleration of the backpack?

I've had a couple of attempts at doing it , for acceleration I got 3.19m/s^2.
I'm not sure if that is correct or not, can someone help ? Thanks