Recent content by hg10tr

We haven't learned much of anything about vectors, we are currently on a unit about Newton's first law. I'm doing an online course and the examples that are given me to solve these problems just show how to use the sine and cosine law.

We have learned a little bit about vectors, unfortunately we are only shown how to solve these types of problems with the sine and cosine law.

Homework Statement Calculate the net force acting on each object indicated in the following diagrams. (diagrams attached) Homework Equations Sine Law: sin a/a = sin b/b = sin c/ c Cosine Law: c^2 = a^2 + b^2 -2ab*cos(c) SOHCAHTOA The Attempt at a Solution a) c2 = a2 + b2 –...

Going off what you said for c), and what i drew as a diagram, with 2.5 km/h being the horizontal part of the triangle and 1.2 km/h being the vertical part, I would use arctan(1.2/2.5) and get 25.6 as an angle?

Homework Statement Sandra needs to deliver 20 cases of celery to the farmer's market directly east across the river, which is 32 km wide. Her boat can move 2.5 km/h in still water. The river has a current of 1.2 km/h flowing downstream, which happens to be moving in a southerly direction...