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Fofino [41]
3 years ago
9

An unbalanced force of 40. newtons keeps a

Physics
2 answers:
Pachacha [2.7K]3 years ago
4 0
(4) 4.0 m/s is the correct answer





faltersainse [42]3 years ago
4 0

Answer:

4.0 m/s

Explanation:

Unbalanced force(F) = 40N

Mass(m) = 5.0kg

Radius(r) = 2.0m

Speed(v)= ???

F = (mv^2)/r

Make v the subject of the formula

mv^2 = Fr

v^2 = Fr / m

v = √Fr/m

v = √(40*2)/5

v = √80/5

v = √16

v = 4.0 m/s

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