Answer:
They are the only joints that can do 360 degrees and rotate with their own axis. But, because of its free-moving, it is prone to any dislocation compared to other movable joints.
Explanation:
Mmm tricky.
Since the velocity is constant, I'm going to assume there is no acceleration in any direction. This means there is no net force in the I or J forection!
Since there are 2 forces, both must be equal and opposite in direction to perfectly cancel each other out.
So the opposite of F1 is (-2N)I + (6N)J!
Answer: 8.242 × 10 exp -8 N
Explanation: F = G *m* M/r^2
r = √(13-5)^² + (51-15)^² + (0-0)²
r = 8; the distance between the masses
G =6.673 × 10 -¹¹ Nm²kg-²
F = gravitational force of attraction of m(51kg) on M {1550kg)
