Acceleration Logic is this right?

  • Thread starter Thread starter circuscircus
  • Start date Start date
  • Tags Tags
    Acceleration Logic
AI Thread Summary
The discussion revolves around calculating the acceleration of a speed skater who slows down while traversing a rough patch of ice. The initial speed is 8 m/s, and after slowing down, the skater moves at 6 m/s over a distance of 5 m. The attempted solution calculates acceleration as -1/5 m/s², but there is uncertainty about the logic used. It is suggested to consider the average speed during the slowdown to find the time taken for the 5 m distance. The conversation emphasizes the importance of using the average speed for accurate calculations.
circuscircus
Messages
15
Reaction score
0

Homework Statement


A speed skater moving across frictionless ice at 8m/s hits a 5m patch of ice. She slows steadily then continues at 6m/s. What is her acceleration on the rough ice?


Homework Equations


Not sure


The Attempt at a Solution


6m/s - 8m/s = -2m/s * 1/5m = 1/10 s

-2m/s * 1/10s = -1/5m/s^2

I'm not sure if my logic follows through
 
Physics news on Phys.org
I don't understand what you are trying to do. If you're trying to find the time it takes to traverse that 5m patch, consider the average speed of the skater during that time. Then you can use Distance = ave speed * time to find the time.
 
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 'Correct statement about a reservoir with an outlet pipe'

Thread 'Correct statement about a reservoir with an outlet pipe'

The answer to this question is statements (ii) and (iv) are correct. (i) This is FALSE because the speed of water in the tap is greater than speed at the water surface (ii) I don't even understand this statement. What does the "seal" part have to do with water flowing out? Won't the water still flow out through the tap until the tank is empty whether the reservoir is sealed or not? (iii) In my opinion, this statement would be correct. Increasing the gravitational potential energy of the...
View full post »

Similar threads

Determine when (m), and how long the rocket should fire.
Replies
2
Views
1K
What Is the Skater's Acceleration on the Rough Ice?
Replies
6
Views
2K
Momentum: why don't the two carts become one?
Replies
32
Views
1K
Help on an acceleration problem (Deceleration?)?
Replies
3
Views
3K
Speed of ball vs Acceleration of the ball?
Replies
4
Views
2K
Average Speed Question for a Train that Accelerates and then Decelerates
Replies
20
Views
2K
Instantaneous acceleration from Velocity-time graph
Replies
5
Views
3K
Does the mass of an object affect its inertia?
Replies
6
Views
2K
Constant acceleration and radius of curvature
Replies
6
Views
3K
How Do You Convert Newtons to Watts for a Maglev Train Acceleration?
Replies
5
Views
7K

Hot Threads

Recent Insights

Back
Top