A train at a constant 60.km/h moves east for 40.0min,then in
A train at a constant 60.km/h moves east for 40.0min,then in a direction of 50.0 degree east of north for 20.0 minutes,and then west for 50.0 minutes.What are the
a) magnitude and
b) Angle of its average velocity during this trip?
At one instant a bicyclist is 40.0m due east of a park’s flagpole,going south with a speed of 10.0m/s.Then 30.0 seconds later,the cyclist is 40.0m due north of the flagpole,going due east with a speed of 10.0m/s.for the cyclist in this 30.0s interval,what are the
a) magnitude and
b) Direction of the displacement.