Home
Class 7
MATHS
Madhre is standing in the middle of a br...

Madhre is standing in the middle of a bridge which is 20 m above the water level of a river. If a 35 m deep river is flowing under the bridge (see Fig. 1.1), then the vertical distance between the foot of Madhre and bottom level of the river is:

A

55 m

B

35m

C

20 m

D

15 m

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • INTEGERS

    NCERT EXEMPLAR|Exercise (C) EXERCISE |160 Videos

  • INTEGERS

    NCERT EXEMPLAR|Exercise (D) APPLICATION (Puzzle)|5 Videos

  • FRACTIONS AND DECIMALS

    NCERT EXEMPLAR|Exercise EXERCISE (FIND THE ERROR)|3 Videos

  • LINES AND ANGLES

    NCERT EXEMPLAR|Exercise Exercise (fill in the blanks) |3 Videos

Similar Questions

Explore conceptually related problems

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

A man is standing on a straight bridge over a river and another man on a boat is on the river just below lthe man on the bridge.If the first man starts walking at the uniform speed of 4 m/ min and the boat moves perpendicularly to the bridge at the speed of 5m/min then at if the height of the bridge above the boat is 3m?

I here is a parabolic shaped bridge across the river of width 10 meter.The highest point of the bridge is 4 meter above the level of bank.A car of mass 72kg is crossing the bridge at a constant speed of 5m/s . Find the force (in Newton) exerted on the bridge by car when it is at the highest point P of the bridge. (take g=10m/s^(2))

A river 1.5 m deep and 36 m wide is flowing at the rate of 3.5 km/hr. Find the amount of water ( in cubic metres ) that into sea per minute.

The highest point measured above sea level is the summit of Mt. Everest which is 8,848m above sea level and the lowest point is challenger Deep at the bottom of Mariana Trench which is 10911m below sea level. What is the vertical distance between these two points?

In a river 2m deep a water level measuring post embedded into the river stand vertically with 1 m of if above the water surface.If the angle of inclination of sum above the horizon is 30^(@) , calculate the length of the post on the bottom surface of river , ( mu for water = 4/3 ) 3.44 m

A river 10 m deep is flowing at 5ms^(-1) . The shearing stress between horizontal layers of the rivers is ( eta=10^-(3) SI units)

The velocity of water in river is 180 km h^(-1) near the surface .If the river is 5 m deep,then the shearing stress between the surface layer and the bottom layer is ( cofficient of viscosity of water eta =10^(-3) Pa s)