A uniform beam resting on two sharp supports has a length L = 16 m and mass M = 90.0 kg. One support is at the left end of the beam and the other is at a distance l = 10 m from the left end. A woman of mass m = 60 kg starts from the left end and walks to the right. As the woman continues to walk towards the right edge of the beam, it will start to tip around the support at right for some value of x > l. What is the magnitude of the force exerted by the support at right at that instant when the beam starts to tip? Hint: Ask yourself what the force exerted by the left support will be when the beam starts to pivot around the right support.
A) 882N B) 1470N C) 1232N D) 588N