help: motion around circular bank (1 Viewer)

[danni a]

if any1 culd help with question 5 from exercise 7.6 from the cambridge book that wuld be great...i keep it on gettin it wrong:mad1:

 

[bboyelement]

did you change it into metres per second ...

reaction force of outer = N₁
reaction force of inner = N₂

N₁ cos a₁ = mg -------- 1
N₁ sin a₁ = mv² /r -------2

[2]/[1]
tan a₁ = 0.916
a₁ = 42.5

do the same for inner and find the difference