A man observes the elevation of a balloon to be `30^(@)` . He, then walks 1 km towards the balloon and finds that the elevation is `60^(@)`. What is the height of the balloon?

A man observes the elevation of a balloon to be 30 ^(@). He, then walks 1 km towards the baoon and finds that the elevation is 60^(@) What is the height of the balloon?

A man observes top of a tower at an angle of elevation of 30^@ . When he walked 40 m towards the tower, the angle of elevation is changed to 60^@ Find the height of the tower and distance from the first observation point to the tower.

A balloon leaves from a point P rises at a uniform speed. After 6 minutes, an observer situated at a distance of 450 sqrt""3 metres from point P observes that angle of elevation of the balloon is 60^(@) Assume that point of observation and point P are on the same level. What is the speed (in m/s) of the balloon?

A man standing on the bank of a river observes that the angle of elevation of a tree on the opposite bank is 60^(@) . When he moves 50 m away from the bank, he finds the angle of elevation to be 30^(@) . Calculate : the height of the tree.

A man observes the angle of elevation of the top of a building to be 30^(@) . He walks towards it in a horizontal line through its base. On covering 60 m the angle of elevation changes to 60^(@) . Find the height of the building correct to the nearest metre.

The angle of elevation of an object on a hill is observed from a certain point in the horizontal plane through its base, to be 30^(@) . After walking 120 m towards it on a level groud, the angle of elevation is found to be 60^(@) . Then the height of the object (in metres) is

The angle of elevation of an object on a hill is observed from a certain point in the horizontal plane through its base, to be 30^(@) . After walking 120 m towards it on a level groud, the angle of elevation is found to be 60^(@) . Then the height of the object (in metres) is

The elevation of top of a hill is observed from a certain point in the horizontal plane through its base, to be 30^(@) . After walking 120 meters towards it on level ground the elevation is found to be 60^(@) . Then the height of the object (in meters) is