KinematicsEasy
Question
A river is flowing from west to east at a speed of 5 m/min. A man on the south bank of the river, capable of swimming at 10 m/min in still water, wants to swim across the river in the shortest time. He should swim in a direction
Options
A.due to north
B.30o east of north
C.30o west of north
D.60o east of north
Solution
To cross the river in shortest time one has to swim perpendicular to to the river current.
Create a free account to view solution
View Solution FreeMore Kinematics Questions
A particle moves in the xy plane with only an x-component of acceleration of 2 ms-2. The particle starts from the origin...The velocity of a particle moving along x - axis is given as v = x2 - 5x + 4 (in m/s) where x denotes the x - coordinate...Block B has a down ward velocity in m/s and given by vB = , where t in s. Acceleration of A at t = 2 second is...A particle starts from rest with constant acceleration. The ration of space - average velocity to the time average veloc...Raindrops are falling vertically with a velocity 10 m /s.To a cyclist moving on a straight road the rain drops appear to...