What does rotational inertia depend on?

What does rotational inertia depend on?

mass

What happens when rotational inertia increases?

Objects with mass require forces to make them speed up or slow down because they have inertia. An object with more rotational inertia is harder to accelerate. Any object with mass will have rotational inertia, and this makes it harder to speed up or slow down the rotation of an object.

Does rotational inertia depends on the force of gravity?

T/F: Rotational inertia depends on the force of gravity. T/F: Rotational inertia is always constant. false. T/F: As the distance between an object’s mass concentration and its axis of rotation increases, its rotational inertia increases.

Why does bending your legs when running Enable?

Why does bending your legs when running enable you to swing your legs to and fro more rapidly? Bending your legs shortens them, thus reducing rotational inertia. The solid disk will because the mass is closer to the axis of rotation.

Which is the closest to the mass of a ladybug?

It would definitely be closer to 1 gram because even 5 grams seems a bit too heavy for a ladybug. 5 grams is equivalent to about a penny so 1 gram would be the best estimate.

What is supplying the centripetal force to keep the ladybug in place?

The only force that is exerted on the whirling can (neglecting gravity) is directed toward the center of circular motion. This is a centripetal force. No outward force acts on the can. The can provides the centripetal force necessary to hold the ladybug in a circular path.

Does the ladybug exert a torque?

Assuming your talking about the ladybug FRQ, yes. If the ladybug causes a change in the disk’s angular speed/momentum, that is proof of torque.

How do you calculate net torque?

When the appropriate sign (positive or negative) is assigned to the magnitudes of individual torques about a specified axis, the net torque about the axis is the sum of the individual torques: →τnet=∑i|→τi|.

What is meant by torque formula?

In US mechanical engineering, torque is defined mathematically as the rate of change of angular momentum of an object (in physics it is called “net torque”). The definition of torque states that one or both of the angular velocity or the moment of inertia of an object are changing.

How do you solve torque equilibrium?

1. A very basic concept when dealing with torques is the idea of equilibrium or balance. In general, an object can be acted on by several torques at the same time.
2. T1 = – T2 If we sum up the torqes acting on the pivot p, we obtain the torque equation on the left:
3. T1 + T2 = T net = 0.
4. |T net| = |T1| – |T2|

How do you multiply by powers?

Multiplying exponents with different bases For numbers with the same base and negative exponents, we just add the exponents. In general: a -n x a -m = a –(n + m) = 1 / a n + m. Similarly, if the bases are different and the exponents are same, we first multiply the bases and use the exponent.

How do you find energy from power?

Electrical energy is the product of power multiplied by the length of time it was consumed. So if we know how much power, in Watts is being consumed and the time, in seconds for which it is used, we can find the total energy used in watt-seconds. In other words, Energy = power x time and Power = voltage x current.