Question

Calcular la velocidad tangencial y la velocidad angular de un movil que describe una circunferencia de 18 centimetros de radio en 0,8 segundos

Answer 1

Answer:

1.41 m/s, 7.85 rad/s

Explanation:

We can start by calculating the tangential velocity, which is given by:

$v=\frac{2\pi r}{T}$

where

r = 18 cm = 0.18 m is the radius of the circumference

T = 0.8 s is the period

Substituting,

$v=\frac{2\pi(0.18)}{0.8}=1.41 m/s$

Now we can also calculate the angular velocity,  which is given by:

$\omega=\frac{2\pi}{T}$

where again,

T = 0.8 s is the period

Substituting,

$\omega=\frac{2\pi}{0.8}=7.85 rad/s$