Is the Car's Motion and Acceleration Negative in Strobe Photography Analysis?

  • Thread starter Thread starter williamx11373
  • Start date Start date
  • Tags Tags
    Physics
AI Thread Summary
In strobe photography analysis of a car's motion, diminishing intervals between successive images indicate that the car is accelerating. If the car's direction of motion is considered positive, the average velocity and average acceleration may be negative due to the decreasing speed. The discussion suggests that all aspects—speed, average velocity, and average acceleration—could be negative, leading to the conclusion that option D is likely correct. The relationship between velocity and acceleration is emphasized, highlighting the importance of analyzing changes in speed. Understanding these concepts is crucial for accurate interpretation of motion in strobe photography.
williamx11373
Messages
20
Reaction score
0
a strobe photograph of a car moving along a straight road shows the interval between each successive image to be diminishing. If the direction of motion of the car is taken as positive, which of the following are negative?

a. the speed of the car
b. the average velocity of the car
c. the average acceleration of the car
d. all of the above


im guessing its D. because velocity and acceleration is somewhat related.
 
Physics news on Phys.org
Time to do a bit more thinking.
Try drawing a diagram.
On a ruler suppose the car starts at 0, then it's at 6 (cm or inch), then 10, then 12 in equal time intervals.
Whats happening to the speed?
What do we call a change in speed
 
Thread 'Voltmeter readings for this circuit with switches'

Thread 'Voltmeter readings for this circuit with switches'

TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
View full post »
Thread 'Trying to understand the logic behind adding vectors with an angle between them'

Thread 'Trying to understand the logic behind adding vectors with an angle between them'

My initial calculation was to subtract V1 from V2 to show that from the perspective of the second aircraft the first one is -300km/h. So i checked with ChatGPT and it said I cant just subtract them because I have an angle between them. So I dont understand the reasoning of it. Like why should a velocity be dependent on an angle? I was thinking about how it would look like if the planes where parallel to each other, and then how it look like if one is turning away and I dont see it. Since...
View full post »

Similar threads

Problem with the power of car
Replies
3
Views
887
Why would this be accelerating positively?
Replies
6
Views
996
Multiple choice velocity/acceleration
Replies
1
Views
4K
How Fast Could a Car Ascend a Straightened Mountain Road?
Replies
48
Views
9K
Calculating Separation of Cars in a Convoy Moving at Max Speed
Replies
4
Views
3K
Car Crash Analysis: Analyzing Friction & Speed
Replies
9
Views
4K
Car acceleration kinematics give average power
Replies
5
Views
2K
Motion Questions -- Acceleration of a race car....
Replies
18
Views
4K
How to Determine Acceleration from a Velocity-Time Graph?
Replies
5
Views
3K
What is the Average Speed and Acceleration of a Car on a Straight Road?
Replies
45
Views
5K

Hot Threads

Recent Insights

Back
Top