A car slams on its breaks,producing friction between the tires and the road.Into which type of energy is the mechanical energy o
2 answers:
You might be interested in
By the Pythagorean theorem we get . Thus the resultant velocity will be 5 m/s.
However there is a typo in the choices. It should take 25 seconds to cross the river, not 20 seconds, since the boat actually travels 125 meters due to the water current, and 125/5 = 25 seconds.
Alternatively you can calculate the eastward component of travel and get 100 / 4 = 25 seconds.