The gravitational field in a region is given by $\bar{E}=(4i+j)N/kg.$ Workdone this field is zero when a particle is moved along the line
- y+4 x=2
- 4 y + x = 6
- x + y = 5
- all of these
The Correct Option is A
Solution and Explanation
Top Questions on Gravitational Potential Energy
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Choose the correct answer from the options given below:
List – I List – II (a) Gravitational constant (i) [L2T-2] (b) Gravitational potential energy (ii) [M-1L3T-2] (c) Gravitational potential (iii) [LT-2] (d) Gravitational intensity (iv) [ML2T-2 - NEET (UG) - 2023
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Concepts Used:
Gravitational Potential Energy
The work which a body needs to do, against the force of gravity, in order to bring that body into a particular space is called Gravitational potential energy. The stored is the result of the gravitational attraction of the Earth for the object. The GPE of the massive ball of a demolition machine depends on two variables - the mass of the ball and the height to which it is raised. There is a direct relation between GPE and the mass of an object. More massive objects have greater GPE. Also, there is a direct relation between GPE and the height of an object. The higher that an object is elevated, the greater the GPE. The relationship is expressed in the following manner:
PEgrav = mass x g x height
PEgrav = m x g x h
Where,
m is the mass of the object,
h is the height of the object
g is the gravitational field strength (9.8 N/kg on Earth) - sometimes referred to as the acceleration of gravity.