A man rows across a river with velocity 8km/h . If his resultant velocity is 10km/h then what is the speed of river water
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=> The boat’s velocity and the river velocity will give the boat a new resultant velocity.
As the boat’s velocity is perpendicular to river velocity,
Assume that,
VB = Velocity of boat
VR = Velocity of river
Apply pythagoras theoram,
Resultant velocity2 = VB2 + VR2
102 = 82 + VR2
100 = 64 + VR2
VR2 = 36
VR = 6 km/h
good question !!!
ask me many questions !!!
=================
✓✓✓✓✓✓✓✓✓✓✓✓✓✓✓✓✓
≠===================
=> The boat’s velocity and the river velocity will give the boat a new resultant velocity.
As the boat’s velocity is perpendicular to river velocity,
Assume that,
VB = Velocity of boat
VR = Velocity of river
Apply pythagoras theoram,
Resultant velocity2 = VB2 + VR2
102 = 82 + VR2
100 = 64 + VR2
VR2 = 36
VR = 6 km/h
good question !!!
ask me many questions !!!
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