How Does Newton's 2nd Law Apply to a Skateboard Pushed by a Cane?

[HelloMotto]

Homework Statement

A man walking with aid of a cane approaches a skateboard (mass 3.5 kg) lying on the sidewalkk. Pushing with an angle of 60 down from the horizontal with his cane, he applies a force of 115N, which is enough to roll the skateboard out of the way.
a) calculate the horizontal force acting on the skateboard
b) calculate the initial acceleration of the skateboard.

The Attempt at a Solution

Fa = ma
115cos60 = 3.5(a)
a = 19.3 m/s2
Fx = 67.55 N.

My answer was wroung T_T
what did i miss?

 

[tambourine]

the setup looks right. did you double check your calculations? i got different answers.

edit: looks like your calculator is set on gradients, not degrees.

 

[HelloMotto]

yea I am pretty sure i did. But the answer is supposed to be 58 N and 16m/s2

edit : lol i feel like an idiot >< thank you