A ship is travelling due east at `10km`/`h`. Another ship heading `30^(@)` east of north is always due north from the first ship. The speed of second ship in `km`/`h` is

A ship is travelling due east at a speed of 15 km//h. Find the speed of a boat heading 30^@ east of north if it appears always due north from the ship.

Ship A is travelling with a velocity of 5 km h^-1 due east. A second ship is heading 30^@ east of north. What should be the speed of second ship if it is to remain always due north with respect to the first ship ?

A boat is travelling due east at 12ms^(-1) . A flag on the boat flaps at 53^@N of W . Another flag on the shore flaps due north.

An aeroplane has to go from a point A to another point B, 500 km away due 30^@ east of north. Wind is blowing due north at a speed of 20 m//s. The air-speed of the plane is 150 m//s. (a) Find the direction in which the pilot should head the plane to reach the point B. (b) Find the time taken by the plane to go from A to B.

A ship is sailing due west according to mariner's compass . If the declination of the place is 20° east , then true direction of ship is

A man travelling towards east at 8km/h finds that the wind seems to blow directly from the north On doubling the speed, he finds that it appears to come from the north-east. Find the velocity of the wind.

A pendulum having a bob of mas m is hanging in a ship sailing along the equator from east to west. When the ship is stationary with respect to water the tension in the string is T_0 . a. Find the speed of the ship due to rotation of the earth about its axis. b. find the difference between T_0 and the earth's attraction on the bob. c. If the ship sails at speed v, what is the tension in the string ? Angular speed of earth's rotation is omega and radius of the earth is R.

A plane moves in windy weather due east while the pilot the plane somewhat south of east. The wind is blowing at 50 km/h directed 30^(@) east of north, while the palne moves at 200 km/h relative to the wind . What is the velocity of the plane relative to the ground and what is the direction in which the pilot points the palne ?

A man goes 10 m due east and than 24 m due north. Find the distance from the starting point.

Ship A is 10km due west of ship B. Ship A is heading directly north at a speed of 30 kmph while ship B is heading in a direction 60° west of north at a speed 20kmph. Their closest distance of approach will be........