A disc of radius `R` is rolling purely on a flat horizontal, with a Constant angular velocity. The angle between the of velocity and acceleration vectors point `P` is given by `sin^(-1) (sqrt2//n)`. What is the value of `n`?

Answer

`02.00`

Explanation

The angle between velocity and acceleration
vectors is `45^(@)`
`:.sin 45^(@)=(sqrt(2))/n`
`:.n=2`