If gravitation suddenly stops …… neglecting the rotation … if someone is standing on ground ….. will the normal reaction disappear?? If yes why? I want to know when
a running man has half the kinetic energy that a boy of half his mass has.the man speed up by 1m/s and then has the same kinetic energy as the body. what were the original speeds of man and boy?
- What is the gravitational field strength of a planet when the weight of a 100 kg astronaut is 400 N?
a) ¼ N kg-1 b) 9.8 N kg-1 c) 4 N kg-1 d) infinity
- The only natural satellite of the earth complete orbits in about
a) 24 days b) 27.3 days c) 30 days d) 365 1/4 days
- The satellite that revolves in a polar orbit is called
a) Natural Satellite b) Geostationary satellite c) Polar
A rifle at a height H aimed horizontally fires a bullet to the ground. At the same time , a bullet with the same mass in dropped from the same height. Neglecting air resistance, which one hits the ground first?Explain. ED posted Answer: Both will hit t...
TWIN PARADOX is a paradoxical situation coming in while explaining the theory of relativity. “Time dilation” is one of the important consequences of relativity. It says that if a body is moving with relativistic speeds, time will dialate ...
A body is dropped from a tower of height 96 m. Another body is thrown up from the ground after a second with a velocity of 40 m/s. When and where they will meet? SOUNDARYA asked Answer: For the first body, u=0 m/s Let S=x (from top) x=0.5 gt2 &#...