A hydrogen-filled balloon ascending at the rate of 18 kmph was drifted – McqOptions

MCQOPTIONS

1.	A hydrogen-filled balloon ascending at the rate of 18 kmph was drifted by wind. Its angle of elevation at 10th and 15th minutes were found to be 60 and 45 respectively. The wind speed (in whole numbers) during the last five minutes, approximately, is equal to
A.	7 km./hr.
B.	11 km./hr.
C.	26 km./hr.
D.	33 km./hr.
Answer» E.

Discussion

No Comment Found

Related MCQs

The angles of elevation of an aeroplane flying vertically above the ground, as observed from the two consecutive stones, 1 km apart; are 45 and 60 aeroplane from the ground is :
If the angle of elevation of the top of a pillar from the ground level is raised from 30 to 60 , the length of the shadow of a pillar of height 50 3 will be decreased by
From a point P on a level ground, the angle of elevation to the top of the tower is 30 . If the tower is 100 metre high, the distance of point P from the foot of the tower is (Take 3 = 1.73)
Find the angular elevation of the Sun when the shadow of a 15 metre long pole is (15 / 3) metre.
If A is an acute angle and cot A + cosec A = 3, then the value of sin A is
If x = a sec and y = b tan then a -b = ?x y
The value of tan 11 tan 17 tan 79 tan 73 is
If sin + sin = 1, then the value of cos2 + 3 cos10 + 3 cos8 + cos6 1 is
If for any acute angle A, sin A + sin A = 1, then the value of cos A + cos4 A is
If 0 90 and 4 cos 4 3 cos + 3 = 0 then the value of is