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SSC Heights & Distance: 29.01.2018

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Question 1

The earth wire connected to the top of an electricity pole and its other end side joint from ground. The foot of wire is 2.5 m away from pole and the wire is making angle of 600 with the elevation of the ground determine the height of pole.

Question 2

A 6ft tall boy finds that the elevation and depression angles of a 24 ft high tower are complementary then what is the distance between the tower and the boy?

Question 3

An observer on the top of a mountain, 500 m above the sea level, observes the angles of depression of the two boats in his same place of vision to be 45 ° and 30 ° respectively. Then the distance between the boats, if the boats are on the same side of the mountain, is (Take √3 = 1.732)

Question 4

There is a park in front of Lois’s house. Lois’ mother is standing in her balcony and watching her son run towards her. In 10 seconds, the angle of depression changes from 30° to 45°. If the height at which Lois’s mother is standing is 50m, Find the speed at which Lois is running:

Question 5

The shadow of a tower standing on a level plane is found to be 40 m longer when the sun's altitude is 45°, than when it is 60°. The height of the tower is:

Question 6

One person flies a kite with a thread 150 metre long. If the thread of the kite makes an angle of 60 ° with the horizontal line then the height of the kite from the ground (assuming the thread to be in a straight line) is?

Question 7

The ratio of the length of a rod and its shadow is . The angle of elevation of the sun is :
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