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Please answer the following question.
1) Will the acceleration of a car be the same when it travels around a sharp curve at 60 km/hr as when it travels around a gentle curve at the same speed? Explain.
Please answer the following question below:
If you were in a car that was out of control and had to choose between hitting a concrete wall or a haystack, common sense tells you to choose the haystack. Explain using terms discussed in today's class why hitting the haystack is the smarter idea.
Please answer the following questions on a separate sheet of paper to hand in on Monday. Answers are posted in bold so you can check your work. Your homework must show ALL WORK.
1. Batman is chasing after some unlucky villains on a rooftop 40 m above the ground. If the villains jump to the next rooftop which stands 44 m above the ground, what jumping velocity will Batman need to inflict some justice? (vi = 8.85 m/s)
2. As a prank, you decide to stand on the roof of Springfield High School (20m) and wait for Mr. Bonnette to walk by below you. You heave a large water balloon at an angle of 10° with a velocity of 10m/s (bad idea). Since Mr. B is 1.8m tall, what would be the velocity of the balloon if he were to be hit in the head? (vf = 21.37 m/s)
3. You are playing leap-frog. What minimum velocity would you need to leave the ground with if you had to jump over your friend 0.5 m high and pass with a speed of 0.2 m/s? (vi = 3.14 m/s)
Please respond to all questions below:
1) If the kinetic energy of an arrow is quadrupled, by what factor has its speed increased?
2) If the velocity of an arrow is quadrupled, by what factor does its kinetic energy increase?
3) If you do 100 J of work to elevate a bucket of water, what is its gravitational potential energy relative to its starting position?
4) What would the gravitational potential energy be if the same bucket was raised twice as high?
Hi all,
Once you have chosen your group topic for the research report, you may post your choice here. You only need 1 response for the group. However, please indicate whether you are in the 1st block regular physics class or the 4th block honors class.
Names | Formal | Key: | |
| CARSON, RYAN | 5 | 1 | constant and non constant speed |
| DAVIS, ALLISON | 4 | 2 | graph match |
| NOCE, JOSEPH | 3 | 3 | bull's eye |
| WILLIAMS, REBEKAH | 2 | 4 | Newton's 2nd Law |
| WITHELDER, MEREDITH | 1 | 5 | Slip-Stick |
| BROUSSARD, VALERIE RUE | 5 | ||
| RANALLI, GINA | 4 | ||
| VUCELICH, ROBERT J | 3 | ||
| DOUGHERTY, KEVIN | 2 | ||
| DUFFY, JOSEPH P | 1 | ||
| LIEB, GREGORY | 5 | ||
| MEWHA, RYAN | 4 | ||
| ANTONIK, NICOLE | 3 | ||
| BURNS, BRITTANY | 2 | ||
| MCCLAIN, NICOLE | 1 | ||
| CAPOFERRI, STEPHANIE | 5 | ||
| GRONLIE, DANIELLE | 4 | ||
| KRAJEK, DEREK | 3 | ||
| MADARY, JONATHAN AARON | 2 |
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
