# 7. This picture shows two different dumbbell shaped objects. Object A has two balls of mass…

7. This picture shows two different dumbbell shaped objects. Object A has two balls of mass m separated by a distance 2L, and object B h largest moment of the rods are massless) as two balls of mass 2m separated by a distance L. Which of the objects has the inertia for rotations around the x-axis? (Assume the balls can be treated as point masses and (a) object A (b) object EB (c) Both objects have the same moment of inertia about the sx 2m 21 axis. 2m 8. Calculate the moment of inertia for the system when it is rotated about the axis going through the left mass. ( Take the left-most mass M Ikg) (a) 4.25 kg m (b) 6.13 kg m? (c) 7.75 kg m 05 m 05 m