Physics - Circular Motion Question with Solution | TestHub

Given$v=20\text{m/s,}$

$R=100\text{m}$

$\frac{dv}{dt}=\text{3}{\text{m/s}}^2$

$a_c=\frac{v^2}{R}=\frac{{\left(20\right)}^2}{100}=4{\text{m/s}}^2$

$a_t=\frac{dv}{dt}=3{\text{m/s}}^2$

$a=\sqrt{a_c^2+a_t^2}=\sqrt{4^2+3^2}=5{\text{m/s}}^2$