Lesson: Angular Impulse Physics • 9th Grade
In this lesson, we will learn how to calculate the angular impulse given to an object when a torque is applied to it for a period of time.
Sample Question Videos
An object with a moment of inertia of 3.2 kg⋅m2 around its axis of rotation initially has an angular velocity of 5.0 rad/s. A torque is applied to the object for 22 s, after which time it has an angular velocity of 48 rad/s. What is the magnitude of the torque applied to the object? Give your answer to one decimal place.
An object is rotating with an angular velocity of 44 rad/s. A torque of 0.23 N⋅m is applied to the object, which brings it to a stop in 135 s. What is the moment of inertia of the object? Give your answer to 2 significant figures.
Which of the following quantities has the same units as angular impulse?