Hello all..I need some help on these 2 questions..(adsbygoogle = window.adsbygoogle || []).push({});

Thanx

-A bowling ball (mass = 7.2 kg, radius = 0.15 m) and a billiard ball (mass = 0.47 kg, radius = 0.028 m) may each be treated as uniform spheres. What is the magnitude of the maximum gravitational force that each can exert on the other?

I know its the gravitional force ...so is it gonna be this way?..

F= G m1m2/r^2 ...where G= 6.673x10^-11 N

????

-A cup of coffee is sitting on a table in an airplane that is flying at a constant altitude and a constant velocity. The coefficient of static friction between the cup and the table is 0.20. Suddenly, the plane accelerates, its altitude remaining constant. What is the maximum acceleration that the plane can have without the cup sliding backward on the table?

for this 1 i'm totally lost....

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# Homework Help: Magnitude of the maximum gravitational force

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