A student takes a ride called The Rotor. The Rotor is an upright cylindrical dru
ID: 1286584 • Letter: A
Question
A student takes a ride called The Rotor. The Rotor is an upright cylindrical drum that is spinning around its axis. Once at speed, the floor is lowered from underneath the riders. The student seems to be "glued" to the wall. The figure below shows a sketch and also the correct freebody diagram. which of the following statements is correct? The magnitude of the frictional force is much larger than the weight. The magnitude of the frictional force is slightly larger than the weight. The magnitude of the frictional force is exactly the weight. The magnitide of the frictional force is slightly lower than the weight. The magnitude of the frictional force is much less than the weight.Explanation / Answer
15) The answer is C. He is not moving which means the net force in the y direction must be equal to zero.
6) The answer is E. Work= change in kinetic energy.
10) the answer is B. F=ma
11) The answer is A. Work=Force*distance
5) The answer is C. Inverse Square Law says when you take the inverse of the distance and square it that is the resulting force.
6) The answer is D. Inverse sqaure law. half the distance will result in 4 times as great of force.
7) The answer is D. Momentum=mass*velocity. The m*v for the houseboat > then m*v for the speedboat.
11) The answer is D. Momentum is always conserved. m1v1=m2v2
12) The answer is B. Defintion of the Law of Conservation of Energy.
13) The answer is A. There has to be a force and A is the only one that has a force on the object.
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