Homework Statement
The total work done is 2.42 * 10^4 J (work is from friction and person pulling a sled). The force of the person pulling is 135 N and the force of friction is 67 N. The angle on the sled is 48.
Homework Equations
W=f*d*cos0
The Attempt at a Solution
I was thinking I would...
I made a triangle with 2.5m/s as the hypotenuse, 1.5m/s as one of the sides. and solved for the other side. I did t=d/v (400/2=200). That's how I solved time.
Homework Statement
A fisherman wishes to cross a river to the shore directly south of his position. The river is 400 m across, and the fisherman's boat is capable of a speed of 2.5m/s. If the river's current has a velocity of 1.5m/s [W], determine
a) the time it takes the fisherman to cross...