A ship is sailing north at the rate of 4 cm per second, the current is taking it east at the rate of 3 cm per second and a sailor is climbing a vertical pole at the rate of 2 cm per second. Find the resultant velocity of the sailor in space.

A ship is sailing towards the north at a speed of 1.25m/s .The current is taking it towards the east at the rate of 1m/s and a sailor is climbing a vertical pole on the ship at the rate of 0.5m/s. Find the velocity of the sailor in space.

A ship is sailing due north at a speed of 1.25 ms^-1 . The current is taking it towards east at the rate of 2 ms^-1 . and a sailor is climbing a vertical pole in the ship at the rate of 0.25 ms^-1 . Find the magnitude of the velocity of the sailor with respect to ground.

In a coil, L=5H , current changes at the rate of 2 ampere per second. The induced

The train runs at the rate of 60km .per hour for the first half and at the rate of 40km .per hour for the second half.

If the edge of a cube increases at the rate of 60cm per second, at what rate the volume in increasing when the edge is 90cm

If the edge of a cube increases at the rate of 60 cm per second, at what rate the volume is increasing when the edge is 90 cm

A ballon is pumped at the rate of 4cm^(3) per second what is the rate at which its surface area increase and radius is 4 cm?

Find the rate of change of the area of a circle per second with respect to its radius r when r=5cm.