This is a practice test designed to be solved in about 120 minutes. As the actua

Question

This is a practice test designed to be solved in about 120 minutes. As the actual test, it contains 10 Questions and 3 Problems. Attention! Make sure that you justify your answers explicitly on the space provided cm this page m order to qualify for partial credit even when your choice is wrong. The adjacent diagram shows the positions at equal time intervals of four identical particles moving horizontally with zero or constant acceleration. Which of the four particles is acted by a larger net force? Two identical particles are launched simultaneously with equal initial velocities v0, and race between the same initial and final positions along differently shaped frictionless rails, as in the figure. Which of the particles wins the race? A disk falls freely from rest without rotation. Then the disk is used to make a yo-yo by wrapping a light thread around its edge. The free end of the thread is kept fixed, while the yo-yo is released from rest and moves vertically down. In which case is the downward motion of the disk faster, after traveling the same vertical distance? When freely falling. As a yo-yo. The speed is the same in both cases. It depends on the mass of the disk. Two particles - a heavy one and a light one - are pressed against identical ideal springs by the same compression and launched on a flat frictionless surface. Which of the particles reaches a higher speed when the springs relax completely? The heavier particle. The lighter particle. Both particles have the same speed. The particles won't move since they are inertial frames.

Explanation / Answer

1. Here largest change in position in given time interval we have figure D has largest change in all diagrams

Here acceleration is maximum in figure D

So maximum Force is in FIGURE D

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