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Consider the following two statements .
<!-- [if !supportLists]-->(A)<!--[endif]-->The gravitational force on a particle inside a spherical shell is zero.
<!-- [if !supportLists]-->(B) <!--[endif]-->Total mechanical energy of a body on earth’s surface may be positive.
Which of the following options is correct?
Consider the following two statements .
<!-- [if !supportLists]-->(A)<!--[endif]-->The gravitational force on a particle inside a spherical shell is zero.
<!-- [if !supportLists]-->(B) <!--[endif]-->Total mechanical energy of a body on earth’s surface may be positive.
Which of the following options is correct?
Inside a spherical shell gravitational field is zero, so net force acting on a particle placed inside it is also zero.
Total energy of a bound system is always negative.
Upvote 
The potential energy of a body of mass 3 kg on the surface of a planet is 54 joule. The escape velocity will be
The potential energy of a body of mass 3 kg on the surface of a planet is 54 joule. The escape velocity will be
By given
By conservation of mechanical energy law
v= 6m/s
Upvote Consider the following two statements .
<!-- [if !supportLists]-->(A)<!--[endif]-->The gravitational force on a particle inside a spherical shell is zero.
<!-- [if !supportLists]-->(B) <!--[endif]-->Total mechanical energy of a body on earth’s surface may be positive.
Which of the following options is correct?
Consider the following two statements .
<!-- [if !supportLists]-->(A)<!--[endif]-->The gravitational force on a particle inside a spherical shell is zero.
<!-- [if !supportLists]-->(B) <!--[endif]-->Total mechanical energy of a body on earth’s surface may be positive.
Which of the following options is correct?
Inside a spherical shell gravitational field is zero, so net force acting on a particle placed inside it is also zero.
Total energy of a bound system is always negative.
Upvote A man is sitting in a boat which is floating in a pond. If the man drink some water from the pond, what will happen to the level of water in the pond?
A man is sitting in a boat which is floating in a pond. If the man drink some water from the pond, what will happen to the level of water in the pond?
Since the water removed from the pond will be equal to the water displacement by the (man + boat) system, the level of water in the pond remains the same.
Upvote Gravitational force between two point masses is found to be F when both are in vacuum. If both the masses are immersed in water, new gravitational force will be:
Gravitational force between two point masses is found to be F when both are in vacuum. If both the masses are immersed in water, new gravitational force will be:
Gravitational force does not depend on the surrounding medium.
Upvote