I have a question about my physics worksheet. 2. Two collision experiments are performed with a...
I have a question about my physics worksheet.
2. Two collision experiments are performed with a small clay ball and a wooden rod in a frictionless, weightless environment. The ball and the rod are not in contact with any other objects. Each has the same mass.
In both experiments, the ball initially has speed v0 and moves without spinning to the right toward a rod that is initially at rest. The ball sticks to the rod in each case.
In Experiment 1, the ball moves toward the center of the rod.
In Experiment 2, the ball moves toward a point near the end of the rod.
Point A is a fixed location in space. Before the collision, the center of the rod is at point A. (If the rod starts to move, its center may leave point A.)
a. During the collision, does the magnitude of the total linear momentum of the ball/rod system in experiment 1 increase, decrease, or remain the same?
b. During the collision, does the magnitude of the total linear momentum of the ball/rod system in experiment 2 increase, decrease, or remain the same?
c. Is the final speed of the center of mass of the system in experiment 1 greater than, less than, or equal to the final speed of the center of mass of the system in experiment 2?
Homework Answers
a. The magnitude of the total linear mometum of the ball/rod system in experiment1 remain same, because total linear momentum is conserved for all types collisions.
b. The magnitude of the total linear mometum of the ball/rod system in experiment2 remain same, because total linear momentum is conserved for all types collisions
c. The final speed of the center of mass of the system in experiment 1 is equal to the final speed of the center of mass of the system in experiment 2
detailed explation in the image
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