Calculate the distance the car coasts before it stops

  • Thread starter Thread starter donrichmond
  • Start date Start date
  • Tags Tags
    Car
AI Thread Summary
To calculate the distance a car coasts before stopping, given an initial speed of 45 km/h and a constant deceleration of 0.50 m/s², the correct approach involves using kinematic equations. The time taken to stop can be calculated as 90 seconds, leading to a stopping distance of 1125 meters. Additionally, the distance traveled during the first and fifth seconds can also be determined using the same kinematic principles. The initial calculations presented were incorrect, indicating a need for a clearer understanding of the equations involved. Accurate calculations are essential for solving this type of physics problem effectively.
donrichmond
Messages
3
Reaction score
0

Homework Statement


a cat traveling at 45km/h slows down at a constant 0.50m/s2. calculate the distance the car coasts before it stops, the time it takes to stop and the distance it travels during the first and fifth seconds


Homework Equations





The Attempt at a Solution

 
Physics news on Phys.org


What have you tried so far? Which part is causing you trouble? You must show some effort to get help.
 


i've been working on this for awhile and I'm just lost
 


donrichmond said:
i've been working on this for awhile and I'm just lost

i came up with 11.25min to stop and it'll travel 1125 m before it stops?
 


Can you show you calculated those numbers?
 
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
View full post »
Thread 'A cylinder connected to a hanged mass'

Thread 'A cylinder connected to a hanged mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Help with question on motion: Avoiding a rear-end collision
Replies
6
Views
3K
Stopping distance of a car rolling down a hill
Replies
4
Views
2K
Calculate the total stopping distance of the car
Replies
7
Views
2K
Distance travelled by a car considering only air friction?
Replies
4
Views
2K
Calculate velocity of stopping car
Replies
7
Views
2K
Car coasts to a stop: find acceleration, distance, average speed
Replies
2
Views
3K
Solving for Car Speed and Stopping Time in a Braking Scenario
Replies
1
Views
6K
Newton's laws question -- a car coasts to a stop on a level road
Replies
6
Views
2K
What Is the Stopping Distance for Cars A and B?
Replies
9
Views
2K
Stopping distances on a downward slope
Replies
3
Views
2K

Hot Threads

Recent Insights

Back
Top