aat 90. km/h?3. A person tries to lift a 70. kg rock by applying an upward force of 500. N, but is unaCalculate how much additional force is needed to be able to lift the rock from the g4. A crane is used to hoist a load of mass m₁ =500. kg. The load is suspendedby a cable from a hook of mass m₂ = 50. kg. The load is lifted upward at aconstant acceleration of 2.0 m/s². Determine (a) the tension, T₁, in thelower cable and (b) the tension, T2, in the upper cable.

Answered: Image /qna-images/answer/f3d3fe97-13ff-4b3a-b251-dcc0fa437f91.jpg

Answered: a at 90. km/h? 3. A person tries to…

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter5: Energy

Section: Chapter Questions

Problem 63AP: A person doing a chin-up weighs 700 N, exclusive of the arms. During the first 25.0 cm of the lift,...

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