Final answer:
No, the rotational speed of different places on Earth varies because linear velocity depends on the radius from the axis of rotation. The equator experiences the highest linear velocity, while it decreases as one moves toward the poles.
Step-by-step explanation:
No, all places on Earth are not rotating at the same speed in kilometers per hour (km/hr). The Earth rotates around its axis and completes one rotation every 24 hours, which is known as the period of rotation of Earth. However, because the Earth is a sphere, different points on Earth's surface move at different linear velocities. At the equator, the Earth's radius is 6.4×106 meters, and the linear velocity here is highest due to the larger circumference that needs to be covered in one rotation. As you move towards the poles, the radius of the circular path decreases, and thus the linear velocity decreases. Objects near the poles would be moving at slower speeds in km/hr than those on the equator. This is a manifestation of uniform circular motion, where even though the angular velocity is constant for the entire Earth, the linear (tangential) speed depends on the radius.