Rotational Motion Physics Problem
posted by Amar .
A car starts from rest on a curve with a radius of 150 and accelerates at 1.2.Through what angle will the car have traveled when the magnitude of its total acceleration is 2.2 ?
tangential component of acceleration a(τ)=1.2 m/s²,
where a(n) is the normal( centripetal) component of acceleration.
a(n)= sqrt(a²-a(τ)²) = sqrt(2.2²-1.2²) = 1.84 m/s²
ω² = a(n)/R
The angular acceleration ε= a(τ)/R.