JAMB - Physics (2009 - No. 43)
The diagram above represents the graph of the force F applied in stretching a spiral spring against the corresponding extension (X). The force constant of the spring is?
20 Nm-1
40 Nm-1
30 Nm-1
10 Nm-1
Explanation
F = Ke (Hooke's law)
K = F/e = 80/4
= 20 Nm-1
K = F/e = 80/4
= 20 Nm-1
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