Hello - can you help with the final answer please? I am not sure if it should be 168m x 168m = 336m or 168m^2
Formula: F^2 = I^2 - 2ad
F=velocity speed
I = initial velocity
-2ad = 2 x deceleration x distanced travelled

F^2 = 13.89^2 - 2 x 6 x 2.08 = ?
I hope you understand this. Thank you so much

Question

Hello - can you help with the final answer please? I am not sure if it should be 168m x 168m = 336m or 168m^2
Formula: F^2 = I^2 - 2ad
F=velocity speed
I = initial velocity
-2ad = 2 x deceleration x distanced travelled

F^2 = 13.89^2 - 2 x 6 x 2.08 = ?
I hope you understand this. Thank you so much

dumbcow · Answer

Are you trying to find final velocity, F  ?

just put it in calculator

littlebird · Answer

Just remember you have to find the square root of both sides as well

dumbcow · Answer

oh i see where you got stuck ... yeah take sqrt of 168

F^2 = 168

F = sqrt(168)

anonymous · Answer

is that 28224?

dumbcow · Answer

no thats 168^2

what number squared = 168

examples:
sqrt(25) = 5
sqrt(36) = 6
sqrt(81) = 9

anonymous · Answer

so answer is 12.96??

dumbcow · Answer

yeah

anonymous · Answer

Thank you so much for your help!!!

dumbcow · Answer

yw :)