In in ocean surveillance system of ship fitted with a (RADAR) the time dely between generation of a radio waves reflected from an enemy ship is observed to be 5.6s. Calculate the distance of the enemy ship from the surveillance ship.

In a submarine fitted with a SONAR the time delay between generation of a signal and reception of its echo from an enemy ship is 110.3 seconds. If speed of sound in water is 1450ms^(-1) then caculate the distance of the enemy ship from the submarine.

A man on the deck of a ship is 10m above the water level. He observes that the angle of elevation of the top of a cliff is 45o and the angle of depression of the base is 30o . Calculate the distance of the cliff from the ship and the height of the cliff.

A man standing on the deck of a ship which is 10 m above the water level, observes the angle of elevation of the top of a hill as 60° and angle of depression of the base of a hill as 30°. Calculate the distance of the hill from the ship and the height of the hill.

A man on the deck of a ship is 10m above the water level.He observes that the angle of elevation of the top of a cliff is 45o and the angle of depression of the base is 30o . Calculate the distance of the cliff from the ship and the height of the cliff.

A man standing on the deck of a ship, which is 10m above the water level, observes the angle of elevation of the top of a hill as 60^@ and the angle of depression of the base of the hill as 30^@ . Calculate the distance of the hill from the ship and the height of the hill.

A man on the deck of a ship is 16 m above water level. He observes that the angle of elevation of the top of a cliff is 45^@ and the angle of depression of the base is 30^@ . Calculate the distance of the cliff from the ship and the height of the cliff.

From a ship mast-head 150m.high, the angle of depression of a boat is observed to be 45^@ . It's distance from the ship is……..