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Answer the following question and respond to another student's post.
You are driving down the highway and a bug splatters on your windshield. Which is greater: the force of the bug on the windshield, or the force of the windshield on the bug? Which effect of the force (acceleration) is greater: the deceleration of the bug or the deceleration of the car? Why?
Please answer the question below by responding to the blog, and then comment on at least 1 other student's answer.
1) When a cannon is fired, how does the size of the force of the cannon on the cannonball compare with the force of the cannonball on the cannon? How does the acceleration of the cannon compare with that of the cannonball? Defend your answer.
Please answer the question below by responding to the blog, and then comment on at least 1 other student's answer.
1) A passenger sitting in the rear of a bus claims that she was injured as the driver slammed on the brakes, causing a suitcase to come flying toward her from the front of the bus. If you were the judge in this case, what disposition would you make? Why?
Please answer the questions below by responding to the blog, and then comment on at least 1 other student's answer.
1) A passenger sitting in the rear of a bus claims that she was injured as the driver slammed on the brakes, causing a suitcase to come flying toward her from the front of the bus. If you were the judge in this case, what disposition would you make? Why?
2)Whiplash sometimes results from an automobile accident when the victim's car is struck violently from the rear. Explain why the head of the victim seems to be thrown backward in this situation. Is it really?
Please answer the questions below by responding to the blog, and then comment on at least 1 other student's answer.
State which of the following quantities, if any, remain constant as a projectile moves through its parabolic trajectory. If they change, state how they change as time goes on.
a) speed
b) acceleration
c) horizontal component of velocity
d) vertical component of velocity
For the following blog, please discuss at least three sources of error in the ball drop experiment performed today.
Please respond to this question by posting a comment below.
Can the magnitude of a vector ever a) equal, or b) be less than one of its components? Explain your answer.
For the following blog, please discuss at least three sources of error in the ball drop experiment performed today. Also, comment on whether or not you think someone else's sources of error were correct or relevant. Finally, answer the following question below in with your sources of error.
An object falls freely from height h. It is released at time zero and strikes the ground at time t. a) When the object is released from height 0.5h, is the time to fall less than, greater than, or equal to time 0.5h? When the time to fall is 0.5t, is the distance of the drop less than, equal to, or greater than height 0.5h? Explain your answers.
Please respond to the question by posting an answer below.
Can 2 vectors of unequal magnitude add up to give you the zero vector? What about three vectors? Under what conditions?
Physics Kinematics Graph 9/21
Please see the diagram below, and then try to describe the motion shown in the graph by posting a message to the blog.
Please see the diagram below, and then try to describe the motion shown in the graph by posting a message to the blog. In addition, also try to correct/comment on one other person's answer by clicking on the "Reply to Comment" link at the bottom of their post.
Please respond to the questions below by clicking on "post a comment", then adding your answers.
1. Does a car's speedometer measure speed, velocity, or both?
2. Can an object be varying in velocity if its speed is constant? If yes, give examples.
3. Can an object have a varying speed if its velocity is constant? If
