Velocity of a swimmer with respect to a river is `(hat i+4hat j)m/s` and velocity of the river flow is `(2hat j)m/s` then velocity of swimmer with respect to ground is (in m/s)

Velocity of mass 'A' of 2kg is V_(A)=(3hat i+2hat j) m/s and velocity of mass 'B' of 4kg is V_(B)=3hat j m/s .Then find the velocity of mass B with respect to velocity of center of mass.

In the figure shown the velocity of A with respect to ground is (20hat(i) + 15hat(j)) m//s , then what will be the magnitude of velocity of the wedge 'B' with respect to ground frame. (A remains in contact with B)

A swimmer crosses the river along the line making an angle of 45^(@) with the direction of flow. Velocity of the river is 5 m/s. Swimmer takes 6 seconds to cross the river of width 60 m. The velocity of the swimmer with respect to water will be :

A swimmer crosses the river along the line making an angle of 45^@ with the direction of flow. Velocity of the river water is 5(m)/(s) . Swimmer takes 12 seconds to cross the river of width 60 m. The velocity of the swimmer with respect to water will be:

Velocity of a particle at some instant is v=(3hat i + 4hat j + 5hat k) m//s . Find speed of the particle at this instant.

A river is flowing with a velocity of 2m/s. If the width of river in 100 m and swimmer wants to cross river is shortest time, what time (in sec) would he take if velocity of swimmer in still water is 4 m/s ?

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.

A plane mirrorr is placed at origin parallel of y- axis, facing the positive x- axis. An object starts from (2m, 0,0) with a velocity of (2hat(i) +2hat(j))m//s . The relative velocity of image with respect to object is along

A plane mirror is placed at origin parallel of y-axis, facing the positive x-axis. An object starts from (2m, 0, 0) with a velocity of (2hat(i)+2hat(j))m//s . The relative velocity of image with respect to object is along

The velocity of a projectile at the initial point A is (2hat(i)+3hat(j))m//s .Its velocity (in m//s) at point B is