Question

PLZZ HELPS

Answer 1

Answer:

$1.16\:\mathrm{rad/s}$

Step-by-step explanation:

Angular speed is given by $\omega=\frac{\Delta \theta}{\Delta t}$, where $\Delta \theta$ is angle change in radians and $\Delta t$ is elapsed time.

Since the baseball makes one fourth (one quarter) of a rotation in 1.35 seconds, it will take the baseball $4\cdot 1.35=5.4$ seconds to complete on rotation.

One rotation is 360 degrees or $2\pi$ radians. Therefore, the angular speed of the baseball is:

$\omega =\frac{2\pi}{5.4}=1.16355283466\approx \boxed{1.16\:\mathrm{rad/s}}$