three identical asteroids of 500kg each are drifting on same plane. one asteroid
ID: 2112918 • Letter: T
Question
three identical asteroids of 500kg each are drifting on same plane. one asteroid is at the origin, another asteroid I has the coordinates (-140m,0m) and another asteroid II has the coordinates (0m,-50m).
what ist he magnitude of the gravitational force on the asteroid at the origin , due to asteroid I? let the graviational constant be G=6.67x10^-11
A. 6.67x10-5
B. 8.51X10^-6
C. 5.96x10^-7
D. 6.72x10^-5
E. -65.7x10^-5.
what is the magnitude of the net graviational force on the asteroid at the origin , due to other two asteroids, I&II?
A. 6.72x10^-5
B. 5.96x10^-7
C. 5.96x10^-5
D. 9.22x10^-6
E. -65.7x10^-5
what is the direction of the net graviational force on asteroid at the origin?
A. 74.6 degrees from -x-axis or -15.4degrees from -y axis
B. 89.5 degrees from -x-axis or -0.5degrees frmo the -y-axis
C. 82.7degrees from the -xaxis or-7.3degrees from the -yaxis
D. 12.2degrees from -xaxis or -77.8degrees from the -yaxis
E. none of these
Explanation / Answer
1)
from F1=Gm1m2/r^2 =6.67*10^-11x500x500/(140)^2 =8.51X10^-6 N
B. 8.51X10^-10 N
2)force on osteroid at origin due to asteroid II
F2=6.67x10^-11x500x500/(50)^2 =6.67x10^-9 N
resultant of F1 and F2 that is
the magnitude of the net graviational force on the asteroid at the origin , due to other two asteroids, I&II
F=(F1^2+F2^2)^0.5 =6.72 x10^-9 N
3)
C. 82.7degrees from the -xaxis or-7.3degrees from the -yaxis
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.