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course Phy 121
I thought I submitted this, but it did not show up as I had done so. I decided to re submit it, thank you!
Figure 3.51 Motion in 2DPhysics I Assignment 07: Move the dot straight from the left of the screen to the right, taking a few seconds to complete the motion. Which vector represents the velocity, and which represents the acceleration? When is the acceleration vector longest? When is the velocity vector longest? When do the vectors have the same direction, and when are their directions opposite?Velocity vector: GREEN
Acceleration Vector: BLUE
Acceleration is the longest when the ball is pulled back far and the force due to gravity and tension propels it forward.
The velocity is the longest when it is pulled diagonally.
They have the same direction when they speeding up together and changing direction.
Opposite direction when they are slowing down. acceleration directed in the direction opposite of its motion
Repeat but move the dot as quickly as possible from left to right. Describe the behaviors of the two vectors.
Now start in the upper left-hand corner, moving at first to the right, but as you continue to move to the right gradually begin arcing downwards so that you follow a graceful (?) curve from upper right to lower left. Describe the behavior of the velocity and acceleration vectors.
Now move the dot around a circular path. Follow a slow circular path, then try to double your speed along the same path. How does the direction of the acceleration vector compare with that of the velocity vector? If you double the speed, then what happens to the magnitudes of the velocity vector and the acceleration vector?
When there are both moved in a circular path, they seem to be equal, Velocity seems to increase and decrease very little, and the acceleration remains the same. When moving slow and steady, there is barely any acceleration. Velocity is the measurement of speed/direction, and acceleration is the change of.
When jerked rapidly the acceleration increases rapidly. Because the velocity changes quickly from doing so, you see the vector for acceleration enlarge and stretch across as well.
Acceleration decreases right before velocity peaks, the vector for acceleration always appears to be at a right angle."
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Good. Thanks for submitting this.
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