1.

A boat is sent across a river with a velocityof 8 kmfh. Ifboat is 10 km/h, the river is flowing with avelocity of36.the resultant velocity of the

Answer»

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

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