Solve 29.
a)
b)
c)
d)
e)
6. Forces
newtons)?
air with an acceleration of magnitude 2 m/s^2. a What is Zola's mass? b What is the reading on the scale as she launches herself upward?
coefficient of static friction between the floor and the block is s=0.6. a Find the magnitude of the normal force exerted by the floor on the block. b Find the magnitude of the static friction force by the floor on the block
be its acceleration after it is released?
the two blocks?
29. A cylindrical room is rotating fast enough that The cylinder is two small blocks stacked against the wall do not drop. The rotating about this axis mass of block A is 4 kg and that of block B is 3 kg. a Draw a diagram of the wall and of blocks A and B. Indicate the direction of the acceleration of block B at the instant shown in the figure. If it is zero, state that explicitly. b Draw separate free-body diagrams for blocks A and B and label the forces as described on page 85 m=4kg c Identify any third-law companion forces on mg=3kg your diagrams using tick marks like those used in Example 6.1. d Rank the magnitudes of all the horizontal forces that you identified above in order from largest to smallest. Explain your reasoning. e Determine the magnitude of each of the vertical forces on block A. If it is not possible.