Four force-time graphs (a), (b), (c) and (d) are shown. In which graph is the impulse maximum? Image
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Question

Four force-time graphs (a), (b), (c) and (d) are shown. In which graph is the impulse maximum? Image

G1 Physics · Accepted Answer

Impulse equals the area under the F–t graph. (a): J = ½ × 1 × 0.5 = 0.25 N s (b): J = 0.5 × 2 = 1 N s (c): J = ½ × 1 × 0.75 = 0.375 N s (d): J = ½ × 2 × 0.5 = 0.5 N s Maximum impulse is for graph (b). Hence option B.