Question
Physics Question on Newtons law of gravitation
Gravitational force acts on a particle due to fixed uniform solid sphere. Neglect other forces. Then particle
A
experiences a force directed along the radial direction only.
B
always moves normal to the radial direction
C
always moves in the radial direction only.
D
always moves in circular orbit
Answer
experiences a force directed along the radial direction only.
Explanation
Solution
Circular motion is a special case in gravitational field. There may be straight line,elliptical paths, but force will be always directed toward the centre of the sphere.