A body of super condense material with mass twice the mass of earth but size very small compared to the size of earth starts from rest from 
above the earth's surface. It reaches earth in time
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Acceleration of supercondense material 
But acceleration of earth 
(towards the mass)
Relative acceleration 
Since, we know that, 
But the body starts from rest.
So, 
Now, 
or 
or 
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
Which of the following statements about the gravitational constant is true?
Two-point masses each equal to 1 kg attract one another with a force of . The distance between the…
Gravitational force between a point mass m and M separated by a distance r is F. Now, if a point ma…
Two balls each of radius R having equal mass and density are placed in contact, then the force of g…
If the distance between the sun and the earth is increased by three times, then attraction between …
Three equal masses of 2 kg each are placed at the vertices of an equilateral triangle and a mass of…