Question

a cyclist moves 12km due north then 5km due east in 3hr. find his Average speed, Average Velocity in m/s

Answer 1

Total distance=17 km

Speed =Distance /Time

=17/3×5/18=1.57 m/s

Total displacement = 5^2+12^2=169=13 km

Velocity =Displacement /Time

=13/3×5/18=1.203 m/s towards North East

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