Advertisements
Advertisements
प्रश्न
A body falls from the top of a building and reaches the ground 2.5 s later. How high is the building? (Take g = 9.8 m s-2)
Advertisements
उत्तर
Given time t = 2.5, g = 9.8 m/s2
Height, H = (1/2) gt2
Or, H = (1/2) (9.8) (2.5)2
Or, H = 30.6 m
APPEARS IN
संबंधित प्रश्न
What is the C.G.S. unit of force? How is it defined?
A body of mass 500 g, initially at rest, is acted upon by a force which causes it to move a distance of 4 m in 2 s, Calculate the force applied.
Define gravitational constant G.
Write down the average value of g on Earth's surface ?
The gravitational force between two bodies is :
Explain the following:
Why does a boatman push the bank backward with a long bamboo pole, on launching his boat in the water?
What is the SI unit of force?
Name the physical quantity associated with the motion of a body.
What are the SI units of constant of gravitation?
Write the SI unit of retardation.
