A 1.4m tall girl sports a balloon moving...

A 1.4m tall girl sports a balloon moving with the wind in a horizontal line at a height of 91.4m from the ground. The angle of elevation of the balloon from the eyes of the girl at that instant is `60^@` . After some time ,the angle of elevation reduces to `30^@`. Find the distance travelled by the balloon during that interval. Take `sqrt 3`=1.732.

Topper's Solved these Questions

SETS AND RELATIONS
PATHFINDER|Exercise QUESTION BANK|56 Videos
STATISTICS
PATHFINDER|Exercise QUESTION BANK|45 Videos

Similar Questions

Explore conceptually related problems

A 1.2 m tall girl spots a balloon moving with the wind in a horizontal line at a height of 88.2 m from the ground. The angle of elevation of the balloon from the eyes ofthe girl at an instant is 60^(@) . After some time, the angle of elevation reduces to 30^(@) . Find the distance travelled by the balloon during the interval.

A statue stands on the top of a 2m tall pedestal. From a point on the ground, the angle ofelevation of the top of the statue is 60^(@) and from the same point, the angle of elevation of the top of the pedestal is 45^(@) . Find the height of the statue.

From the bottom of a 'tila' the angle of elevation of its unreachable top is 45^@ . After moving 100 metre along the 'tila' the angle of elevation becomes 60^@ . Find the height of the tila? [sqrt3 = 1.732]

From the bottom of a 'tila' the angle of elevation of its unreachable top is 45^@ . After moving 100 metre at an angle of 30^@ along the tila the angle of elevation becomes 60^@ . Find the height of the tila. (sqrt3= 1.732)

An observer of height 1.8 m is 13.2 m away from a palm tree. The angle of elevation of the top of the tree from his eyes is 45^(@) What is the height of the palm tree?

A man, standing on the bank of a river observes that the angle of elevation of the top of a tree just on the opposite bank is 60^@ But the angle off elevations is 30^@ from a point at a distance y metres from the bank. Show that the height of tree h= sqrt(3y)/2.

The angle of elevation of a jet plane from a point A on the ground is 60^(@) . After a flight of 15 seconds, the angle of elevation changes to 30^(@) . If the jet plane is flying at a constant height of 1500sqrt3 meter, find the speed of the jet plane. (sqrt3 = 1.732)

An observer of 1.6m tall is 20sqrt3 away from a tower. The angle of elevation, from his eyes to the top of the tower is 30^@ . The heights of the tower is_____

A 1.5m tall boy stands at a distance of 3m from a lamp post and casts a shadow of 4.5m on the ground. Find the height of the lamp.

From the foot of a 60m high tower the angle of elevation of a minar is 60^@ and from the top, it is 30^@ . Find the height of the minar.

PATHFINDER-SOLUTION OF TRIANGLE AND HEIGHT AND DISTANCE-QUESTION BANK

To a person standing at the middle point of the horizontal straight li...
Text Solution
|
From the top and bottom of a cliff the angles of depression and elevat...
Text Solution
|
A 1.4m tall girl sports a balloon moving with the wind in a horizontal...
Text Solution
|
The angle of elevation of a jet plane from a point on the ground ...
Text Solution
|
A man standing in the midst of a field observes, a flying bird in his...
Text Solution
|
A man on the top of a vertical observation tower observes a car moving...
Text Solution
|
Two vertical poles are 120 metres apart and the height of one is doub...
Text Solution
|
The angle of elevation of a cloud from a point 200 m above a lake is...
Text Solution
|
At the foot of a mountain, the elevation of its summit is 45^@. After ...
Text Solution
|
A ladder leaning against a vertical wall is inclined at an angle alpha...
Text Solution
|
If the length of the sides of the triangle ABC satisfy, 2(bc^2+ca^2+a...
Text Solution
|
ABC is a right angled Delta in which angleB=90^@ and BC =a. If n point...
Text Solution
|
The perimeter DeltaABC is 3 times the arithmetic mean of the sine of ...
Text Solution
|
Let A0A1A2A3A4A5 be a regular hexagon inscribed in a circle of unit ra...
Text Solution
|
If twice the square of the diameter of a circle is equal to half the s...
Text Solution
|
If in DeltaABC,1/(a+c)+1/(b+c)=3/(a+b+c), then angleC is equal to
Text Solution
|
In a DeltaABC, the point D divides BC in the ratio 1:2 Also AD is perp...
Text Solution
|
In a triangle with sides a, b and c a semicircle touching the sides A...
Text Solution
|
From the top of a tower , which is 240m high , if the angle of depres...
Text Solution
|
If the length of the shadow of a vertical pole on the horizontal groun...
Text Solution
|