A 21 newton force keeps a 3 kg object in uniform circular motion. The speed of the object is 9 m/s. The magnitude of the centripetal acceleration is 3 m/s^2
7 m/s^2
27 m/s^2
30 m/s^2

Explanation:

F = ma

a = F/m = 21/3 = 7 m/s²

speed

ratio of distance traveled to time interval

net force

vector sum of forces on object

object

source of diverging light rays either luminous or illuminated

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explanation:

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