contestada

An object on a 2-m string is swung in a horizontal circle, causing it to experience a centripetal acceleration of 3000 m/s2. What is the linear speed of the object?

Respuesta :

Answer:

77.5 m/s

Explanation:

The centripetal acceleration (ac) of an object moving in a circle is equal to the square of the linear speed (v) divided by the radius (r) of the circle.

ac = v² / r

3000 m/s² = v² / (2 m)

v² = 6000 m²/s²

v = 77.5 m/s