. The velocity of a boat relative to water is represented by `3bar i +4bar j` and that of water relative to the earth by `bar i-3 bar j`. What is the velocity of the boat relative to the earth, if `bar i and bar j` represent velocities of 1 km/hour east and north respectively .

(a) What physical quantity is measured in bar ? (b) How is the unit bar related to the S.I. unit pascal ?

An aeroplane is flying with a velocity 800kmph relative to air wind is belong from west to east with a velocity 15 ms^(-1) . Find velocity of aeroplane relative to the earth to fly south ward

The vector difference between the absolute velocities of two bodies is called their relative velocity. The concept of relative velocity enables us to treat one body as being at rest while the other is in motion with the relative velocity. This jormalism greatly simplifies many problems. If vecv_(A) is the absolute velocity of a body A and vec_(B) that of another body B then the relative velocity of A in relation to B is vec_(AD)=vecV_(A)-vecv_(B) and vecv_(BA)=vecv_(B) - vecv_(A) . The principle follows here is that the relative velocity of two bodies remains unchaged if the same additional velocity is imparted to both the bodies. A simple way of carrying out this operation is to be represent the velocities in magnitude and direction from a common point. Then the line joining the tips of the vectors represents the relative velocity Q A train A moves to the east with velocity of 40 km/hr and a train B moves due north with velocity of 30 km/hr. The relative velocity of A w.rt. B is

A motor boat is racing towards North at 25 km//h and the water current in that region is 10 km//h in the direction of 60 ^@ East of South. Find the resultant velocity of the boat.

A chord bar(AB) is 3 cm. from the center of a circle with radius 4. What is the length of chord bar(AB) ?

A boat moves relative to water with a velocity v which is n times less than the river flow velocity u . At what angle to the stream direction must the boat move to minimize drifting ?

A boat moves relative to water with a velocity v which is n times less than the river flow velocity u . At what angle to the stream direction must the boat move to minimize drifting ?

A boat is travelling with a speed of "27 km h"^(-1) due east. An observer is situated at 30 m south of the line of travel. The angular velocity of the boat relative to be the observer in the position shown will be

A motor boat is racing towards North at 25 km//h and the water current in that region is 10 km//h in the direction of 60 ^(00 East of South. Find the resultant velocity of the boat.

A boat is moving with a velocity 3 hat i+ 4hat j with respect to ground. The water in the river is moving with a velocity -3 hat i - 4 hat j with respect to ground. The relative velocity of the boat with respect to water is.