a motorist is driving 300 km east then turns and goes 200 km north. If the entire trip took 5 hours, determine the motorist's velocity.

Question

anonymous · Answer

HELPPPPPPPPP

joannablackwelder · Answer

Average velocity is total distance/total time. Since the motorist traveled a total of 500km in 5 hours, his velocity is 100 km/hr.

anonymous · Answer

@jonnablack.. 

thats horribly wrong.. 

you calculate average speed not average velocity!

to calculate average velocity find the displacement..

joannablackwelder · Answer

Mashy, You  are absolutely right. Sorry about that. I calculated average speed, not velocity. Yes, to calculate displacement, you use the Pythagorean theorem and use trig to find the angle.