what is the current magnitude ? of the angular momentum of the car about the diner

Ex. Ex. 67 : A wheel of moment of inertia 1 kgm? is rotating at a speed of 40 rad/s. Due to friction on the axis, the wheel comes to rest in 10 minutes. Calculate the angular momentum of the wheel, two minutes before it comes to rest.

What is the angular momentum of a 0.315 kg ball rotating on the end of a thin string in a circle of radius 1.10 m at an angular speed of 12.0 rad/s ? Express your answer using three significant figures and include the appropriate units.

Two objects of masses m, =2 kg and m,=3 kg are fixed to the ends of a light, rigid rod which is rotating with a constant angular speed in the xy plane around a fixed axis passing through O as shown in the figure. V=4 m/s , what is the total angular momentum of the system about O? 7-

Q2: Three planets of identical mass m are interacting gravitationally (no other force). These planets are assumed to be at the vertices of the triangle with all sides of length L. Consider the motion of any one of the planets about the center of mass COM of the system, determine the special angular velocity that will keep L constant.

Earth is rotating about the Sun in our solar system. The distance between the Earth and Sun is 1.5 × 1011m. Consider the impact of an asteroid of mass 8.9 ×1015 kg and a speed of 90,000km/h with respect to the Earth’s surface. The asteroid strikes the Earth at the equator as shown in Figure. Consider the mass and radius of the Earth are ME = 5.97 × 1024 kg and RE = 6.38×106 m, respectively. Assume that the axial and orbital axis of rotations are parallel to each other.   (c) What is the maximum possible change in the length of a day due to the collision?(d) How much energy is needed to stop the Earth’s rotation about its axis after the collision?(e) What would be the moment of inertia of the Earth if the axis of rotation is parallelly shifted so that it touches the equator?

- A subway train consisting of 3 cars moves on a straight track with a velocity of 1.1 meters per second. The mass of each car 3,119 kilograms. What is the total linear momentum of the train? Use kg m/s as unit. -  A wind turbine has a moment of inertia of 1,265 kg m2. What is the angular momentum L of the turbine if its period of rotation is 3.16 seconds? Note, use "kg m2/s" (without the quotes) for the unit of the rotational momentum in your answer. - A 0.14 kg solid billiard ball with a radius of 0.1 m is rolling on a pool table with a speed of 1.12 m/s without slipping. Find the angular momentum of the ball. (unit in kg m2/s)

A wheel (of radius 0.5 meters) spins with an angular velocity of 2 radians per second (rad/s). If this wheel were rolling on the ground without sliding, how fast would the wheel be traveling? O 1 m/s O 0.5 m/s It's not this one. O 2 m/s

An object of mass 2.75 kg is moving with a velocity v = (3.8of – 5.10k) m/s. What is the angular momentum of the mass relative to the origin when it is at the location (1.50, -1.50, 1.50) m? (Express your answer in vrector form )

A 1140 kg1140 kg car has just passed a diner. The closest the car came to the diner was ?=24.5 mR=24.5 m, but the car has driven another ?=30.7 mx=30.7 m in the 2.65 s2.65 s elapsed since then. If the car travels at constant speed, what is the current magnitude ?L of the angular momentum of the car about the diner?