A body moves along the east
with velocity 20 km/h and then
due north with velocity of 15
km/h.The resultant velocity is
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Answer: At first, velocity of the body along east=20km/h, i.e, 20î. Then it's moving along north with a velocity 15km/h=15j.
the resultant(R)=√(15²+20²) [as cos90°=0]
=25km/h
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