Fair or unfair? (1 Viewer)

[Sindivyn]

SHM question, in the form Acos(2t+a) where you have to find A and a given a velocity at t = 0 as well as displacement at t = 0.
I didn't bring out the 2 at the start when deriving velocity.
Part 2 involved figuring out the time at a given displacement.
In total it was out of 5, i received 1/5 (my only mistake was not bringing the 2 out).
Should I appeal it?

 

[deswa1]

SHM question, in the form Acos(2t+a) where you have to find A and a given a velocity at t = 0 as well as displacement at t = 0.
I didn't bring out the 2 at the start when deriving velocity.
Part 2 involved figuring out the time at a given displacement.
In total it was out of 5, i received 1/5 (my only mistake was not bringing the 2 out).
Should I appeal it?

Yes definitely. Assuming your ONLY mistake was not bringing the 2 out and not bringing the 2 out didn't make the question easier, you should get 4/5 for carry on error.

 

[Sindivyn]

Yes definitely. Assuming your ONLY mistake was not bringing the 2 out and not bringing the 2 out didn't make the question easier, you should get 4/5 for carry on error.

Not bringing the 2 out made it harder - it wasn't a trigonometric identity because of it. I'm not sure if I'm going to rank first overall anyway, but I might appeal to make sure.