For 10 s, the material point, moving uniformly, has passed half of the circle

For 10 s, the material point, moving uniformly, has passed half of the circle, the radius of which is 50 cm. Determine the linear speed of this point.

To determine the linear speed of a material point, it is necessary to divide the distance traveled by time.

The distance covered is half the length of a circle with a radius of 50 cm (in the SI system 0.5 m), the time is known, then:

v = S / t = (2 * n * R / 2) / t = 3.14 * 0.5 / 10 = 1.57 / 10 = 0.157 m / s.

With the requirement of the task, round up to hundredths – 0.16 m / s.