A wheel accelerates with a constant angular acceleration of 4.5 rad/s2. If the initial angular velocity is 1.0 rad/s, what is the angle the wheel rotates through in 2.0 s?

Respuesta :

Answer:

The angle which the wheel rotates through in 2 seconds is   [tex]\theta =11 \ radians[/tex]

Explanation:

From the question we are told that

    The constant angular acceleration of the wheel is [tex]\alpha = 4.5 rad/s^2[/tex]  

     The initial angular velocity of the wheel is  [tex]w_1 = 1.0 \ rad/s[/tex]

     The time duration considered is  [tex]t = 2.0 \ s[/tex]

Generally from kinematic equation we have that

      [tex]\theta = w_1 t +\frac{1}{2} \alpha t^2[/tex]

=>   [tex]\theta = 1.0 * 2 +\frac{1}{2} * 4.5 * 2^2[/tex]

=>   [tex]\theta =11 \ radians[/tex]