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Question:

A crane lifts a 131-kg steel beam, applying a 2,070-N vertical forceFind the beam's acceleration.?

A crane lifts a 131-kg steel beam, applying a 2,070-N vertical forceFind the beam's acceleration.?

Answer:

If the crane were not lifting the beam, a force of 1319.81 1285.11N is necessaryWhen a is positive upward: F 131(a+9.81) so a [2070 - 1319.81]/131 5.99m/s² or about 6m/s²
If the crane were not lifting the beam, a force of 1319.81 1285.11N is necessaryWhen a is positive upward: F 131(a+9.81) so a [2070 - 1319.81]/131 5.99m/s² or about 6m/s²

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