• Best of luck to the class of 2024 for their HSC exams. You got this!
    Let us know your thoughts on the HSC exams here
  • YOU can help the next generation of students in the community!
    Share your trial papers and notes on our Notes & Resources page
MedVision ad

need help with part d and e (1 Viewer)

ekjchale#1

Active Member
Joined
Apr 4, 2022
Messages
118
Gender
Male
HSC
2022
dk e but for d y cant we use the times found in c, because velocity is a maximum at centre hence cant we just plug those times into d. also need help for e
1654761300099.png
thanks in advance
 

ExtremelyBoredUser

Bored Uni Student
Joined
Jan 11, 2021
Messages
2,482
Location
m
Gender
Male
HSC
2022
dk e but for d y cant we use the times found in c, because velocity is a maximum at centre hence cant we just plug those times into d. also need help for e
View attachment 35767
thanks in advance
Velocity is not a maximum at the centre, speed is. Let me show you why;

At x = 0;







Hence for first two times, let k = 1 , 2:


For (d)

As velocity is maximum at centre, the origin in this context.


respectively for

Hence to find the max velocity, you have to use times with k as an even integer since odd correlates with velocity at a minima . So next time would be at k = 4.

 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top