Concept explainers
A 2-kg mass is 1 m away from a 5-kg mass. What is the gravitational force (a) that the 5-kg mass exerts on the 2-kg mass, and (b) that the 2-kg mass exerts on the 5-kg mass? (c) If both masses are free to move, what are their respective accelerations if no other forces are acting?
(a)
The gravitational force the
Answer to Problem 86E
The gravitational force the
Explanation of Solution
Given Info: The first mass is
Write the expression for gravitation force.
Here,
Substitute
Conclusion:
Therefore, the gravitational force the
(b)
The gravitational force the
Answer to Problem 86E
The gravitational force the
Explanation of Solution
Given Info: The first mass is
Write the expression for gravitation force.
Substitute
Conclusion:
Therefore, the gravitational force the
(c)
The acceleration of the masses.
Answer to Problem 86E
The acceleration of the
Explanation of Solution
Given Info: The first mass is
Write the expression for acceleration of
Here,
Substitute
Write the expression for acceleration of
Here,
Substitute
Conclusion:
Therefore, the acceleration of the
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Chapter 2 Solutions
Physical Universe
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