Calculating Acceleration from Distance and Time: Is This Solution Correct?

AI Thread Summary
To calculate the acceleration of a body that starts from rest and covers 150 m during the 8th second, the formula s = ut + 1/2 at^2 is used. With an initial velocity (u) of 0, the calculated acceleration (a) is 4.68 m/s². The solution is questioned for its correctness, prompting verification through a velocity-time (v-t) diagram, where the area represents displacement and the slope indicates acceleration. The discussion emphasizes the importance of understanding motion equations and graphical analysis in physics. The final calculation and method should be confirmed for accuracy.
abhavi
Messages
1
Reaction score
0

Homework Statement



A body starts from rest along the straight line with uniform acceleration .it covers a distance of 150 m during 8th second of its motion calculate acceralation of body

Homework Equations



s= ut+1/2 at^2

The Attempt at a Solution



u = 0 ;
a = (2*150)/64 = 4.68m/s^2;
Is this right or wrong?please asnwer me as i am posting on behalf of my sister.
 
Physics news on Phys.org
That's it.
You can verify it by drawing the v-t diagram... the area is the displacement, the slope is the acceleration.
 

Thread 'Rolling without slipping on a curved surface'

Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
View full post »
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

Relating acceleration to distance and time
Replies
5
Views
3K
Problem with the power of car
Replies
3
Views
881
Some quick questions concerning uniform acceleration and linear motion
Replies
2
Views
1K
How Far Did the Ball Roll in the First 5 Seconds?
Replies
14
Views
6K
"Distance" between events in uniformly moving and accelerating frames
Replies
6
Views
2K
Kinematics problem -- A lift ascends from rest with uniform acceleration
Replies
5
Views
4K
What is the Correct Acceleration of the Rocket During Its Launch Phase?
Replies
3
Views
2K
How to find acceleration from distance and time?
Replies
4
Views
3K
How to Determine Acceleration from a Velocity-Time Graph?
Replies
5
Views
2K
Prove This, please -- particle moving with a uniform acceleration
Replies
10
Views
1K

Hot Threads

Recent Insights

Back
Top