A crane lifts a 425 kg steel beam vertically upward a distance of 95m How much work does the crane do on the beam if the beam accelerates upward at 1.8 m/s2? Neglect frictional forces

A) 4.0 × 105 J B) 3.2 × 105 J C) 4.7 × 105 J D) 2.7 × 105J


C

Physics & Space Science

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How do we know the total mass of the Milky Way Galaxy that is contained within the Sun's orbital path?

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As a supersonic aircraft gains speed, the angle of its shock wave

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Physics & Space Science