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a at 90. km/h? 3. A person tries to lift a 70. kg rock by applying an upward force of 500. N, but is una Calculate how much additional force is needed to be able to lift the rock from the g 4. A crane is used to hoist a load of mass m₁ = 500. kg. The load is suspended by a cable from a hook of mass m₂ = 50. kg. The load is lifted upward at a constant acceleration of 2.0 m/s². Determine (a) the tension, T₁, in the lower cable and (b) the tension, T2, in the upper cable.

a at 90. km/h? 3. A person tries to lift a 70. kg rock by applying an upward force of 500. N, but is una Calculate how much additional force is needed to be able to lift the rock from the g 4. A crane is used to hoist a load of mass m₁ = 500. kg. The load is suspended by a cable from a hook of mass m₂ = 50. kg. The load is lifted upward at a constant acceleration of 2.0 m/s². Determine (a) the tension, T₁, in the lower cable and (b) the tension, T2, in the upper cable.

University Physics Volume 1
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter2: Vectors
Section: Chapter Questions
Problem 26P: In a tug-of-war game on one campus, 15 students pull on a rope at both ends in an effort to displace...
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a at 90. km/h? 3. A person tries to lift a 70. kg rock by applying an upward force of 500. N, but is una Calculate how much additional force is needed to be able to lift the rock from the g 4. A crane is used to hoist a load of mass m₁ = 500. kg. The load is suspended by a cable from a hook of mass m₂ = 50. kg. The load is lifted upward at a constant acceleration of 2.0 m/s². Determine (a) the tension, T₁, in the lower cable and (b) the tension, T2, in the upper cable.
Transcribed Image Text:a at 90. km/h? 3. A person tries to lift a 70. kg rock by applying an upward force of 500. N, but is una Calculate how much additional force is needed to be able to lift the rock from the g 4. A crane is used to hoist a load of mass m₁ = 500. kg. The load is suspended by a cable from a hook of mass m₂ = 50. kg. The load is lifted upward at a constant acceleration of 2.0 m/s². Determine (a) the tension, T₁, in the lower cable and (b) the tension, T2, in the upper cable.
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