AP EAMCET · PHYSICS · Gravitation
The gravitational field in a region is given by \(\mathbf{I}=(5 \hat{\mathbf{i}}+12 \hat{\mathbf{j}}) \mathrm{Nkg}^{-1}\). The change in the gravitational potential energy of an object of mass \(3 \mathrm{~kg}\) when it is taken from the origin to a point \((8 \mathrm{~m},-2 \mathrm{~m})\) is
- A \(1 \mathrm{~J}\)
- B \(16 \mathrm{~J}\)
- C \(48 \mathrm{~J}\)
- D \(3 \mathrm{~J}\)
Answer & Solution
Correct Answer
(C) \(48 \mathrm{~J}\)
Step-by-step Solution
Detailed explanation
Given, gravitational field intensity, \(\mathbf{I}=(5 \hat{\mathbf{i}}+12 \hat{\mathbf{j}}) \mathrm{Nkg}^{-1}\) Mass of object, \(m=3 \mathrm{~kg}\) We know that, change in potential energy from to \(P(8 m,-2 m)\) is given by…
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