The boy stretched an elastic band with a hardness of 500 N / m by 9 cm. Determine the elastic force.

Given:
D (hardness) = 500 (H / m)
S (how much they stretched) = 9 (cm) = 0.09 (m)
F (control) -?
Decision:
F (control) = D * S = 500 * 0.09 = 45 (H)
Answer: the elastic force is 45 Newtons



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