# Math Help - Vector F

1. ## Vector F

A man pushes a wheelbarrow up an incline of 20 degrees with a force of 100 pounds. Express the force vector F in terms of i and j.

2. Originally Posted by magentarita
A man pushes a wheelbarrow up an incline of 20 degrees with a force of 100 pounds. Express the force vector F in terms of i and j.
Let $|\vec F|$ denote the length of the vector (=magnitude of the force) then the vector $\vec F = \left(100 \cdot \cos(20^\circ)\bold{ i}, 100 \cdot \sin(20^\circ)\bold{ j} \right)$

See attachment

3. ## ok

Originally Posted by earboth
Let $|\vec F|$ denote the length of the vector (=magnitude of the force) then the vector $\vec F = \left(100 \cdot \cos(20^\circ)\bold{ i}, 100 \cdot \sin(20^\circ)\bold{ j} \right)$

See attachment
I can take it from here.

Thanks