Phy 201
Your 'cq_1_18.2' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
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A child in a car tosses a ball upward so that after release it requires 1/2 second to rise and fall back into the child's hand at the same height from which it was released. The car is traveling at a constant speed of 10 meters / second in the horizontal direction.
• Between release and catch, how far did the ball travel in the horizontal direction?
answer/question/discussion:
v=ds/dt so ds=v*dt=10m/s*.5s=5m
• As observed by a passenger in the car, what was the path of the ball from its release until the instant it was caught?
answer/question/discussion:
Straight up then straight down.
• Sketch the path of the ball as observed by a line of people standing along the side of the road. Describe your sketch. What was shape of the path of the ball?
answer/question/discussion:
It forms a curved path beginning at the point of release traveling up then curving and traveling downward ending at the same height as the release.
• How fast was the ball moving in the vertical direction at the instant of release? At that instant, what is its velocity as observed by a line of people standing along the side of the road?
answer/question/discussion:
9.8m/s
• How high did the ball rise above its point of release before it began to fall back down?
answer/question/discussion:
not sure
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30min
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THis is actually seed question 18.2 the link on 18.2 did not haave a submit button or a box to put the answer in.
Thanks for pointing out the lack of a submit button. I just fixed it.
You did fine until the last two qusetions. Check out the link below:
&#At least part of your solution does not agree with the solution and comments given at the link below. You should view the solution at that link and self-critique as indicated there.
Solution
This link also expands on these topics and alerts you to many of the common errors made by students in the first part of this course. &#