Question

Two boats A and B having same speed relative to river are moving ina river. Boat A moves normal to the river current as observed by an observer moving with velocity of river current.Boat B moves normal to the river as observed by the observer on the ground.

• A. To a ground observer boat B moves faster than A.
• B. To a ground observer boat A moves faster than B.
• C. To the given moving observer boat B moves faster than A.
• D. To the given moving observer boat A moves faster than B.

Answer 1

The correct option is B To a ground observer boat A moves faster than B.

Answer is B

Boat A appears to move normal to the flow of river with relative to an observer moving with river current ,it mean Boat A has a velocity component along river flow ,hence its velocity will appear more than of B from ground.