A boat takes 2.6 hours to travel 28.43 km down a river, then 5.5 hours to return. How fast is the river flowing?
So we want to find the velocity the river has.
I'm not sure I even started this right.
First I converted 2.6 hours to seconds = 9360 s
Then 5.5 hours to seconds = 19800 s...
Hi,
I am having some trouble with this simple kinematics problem. Here it is:
A skier is gliding along at 2.91 m/s on horizontal, frictionless snow. He suddenly starts down a 22° incline. His speed at the bottom is 12.18 m/s.
The first question asks for the length of the incline, which...
Thanks for the explanation you two, it makes sense! I thought a dimensionally correct eqn had to be correct but I now see why that's not true. Thanks again!
I understand the concept of dimensional analysis and what it's used for etc..My question refers to a dimensionally correct or incorrect equation being true or false. Here are the possiblities:
1. A dimensionally correct equation may be correct.
2. A dimensionally incorrect equation may be...