# What is the mass of the object? F=10 N; V= 2.0 m/s; r= 3.0 m.?

a force of 10 n applied to one end of a cord keeps an object tied to the other end moving at a speed of 2.0 m/s in a horizontal circle of radius 3.0 m. What is the mass of the object?

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- 1 month agoFavorite Answer
for the moving object, force acting is

F = m v’2 / r , so that

mass of the object is m = F r / v’2 = 10x3/ 4 = 7.5 kg.

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- Anonymous1 month ago
F = m v^2 / r

then

m = F r / v^2

m = 10 * 3 / 4 = 22.5 kg

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