7. The angles between the force and the displacement for maximum and minimum work respectively be
(1) 90° and 0°
(2) 0° and 90°
(3) 0° and 180°
(4) 180° and 0°
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Step-by-step explanation:
0 to 90 acute
90 to 0 obtuse
0 to 180 straight
180 to 0 supplementary
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