# A rate of vb at this instant find changing at

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Unformatted text preview: ve ! x-axis. The speed of B isspeed of B isa rate of vB . a rate of vB . At this instant, find: changing at changing˙ at a) The velocity of A as seen by car B. Find: At this instant: b) The acceleration of A as seen by car B. • Determine the velocity of A as seen by car B. Use the following parameters in your analysis: r = 100 m, v A = 15 m/s, vB = 20 m/s, • Determine the acceleration m/s2. as seen by car B. ! vB = -2 of A B y A r x Use the following parameters in your analysis: r = 150 m, vA = 20 m/s, vB = 30 m/s and vB = 4 ˙ 2. m/s Chapter I: Particle Kinematics Homework I-11 Particle Kinematics Homework Problems ME 274 Homework 1.D.3roblem I/15 P A worker is lifting a large crate, P, using a pulley shown in the diagram. He is holding Given: A worker tis lifting at point crate, P, using a pulley shownat athe diagram. He v .holdingis the speed he rope a large A and is walking to the right in constant speed is What the A rope at point A and is walking to the right at a constant speed vA . of the crate when the worker has walked a distance x? Find: What is the speed of the crate when the worker has walked a distance x? Use the following parameters in your analysis: v A = 1.5 m/s, x = 2 m, h = 5 m. O h P’ P A A’ x Use the following parameters in your analysis: vA = 2 m/s, x = 3 m and h = 8 m. be small. termine the speed of block B when s A = 0 . I-12 termine the speed of block B when s A = 4 m . Chapter I: Particle Kinematics Homework Homework 1.D.4 Given: Blocks A and B are connected by the pulley-system shown below. Block A moves downward with a constant speed of vA on a vertical guide. Assume the radii of the pulleys to be small. Find: For this problem: • Determine the speed of block B when sA = 0. • Determine the speed of block B when sA = 4 m. 8 m / sec in your analysis. 1.5 m O sA sB A vA Use the following parameters in your analysis: vA = 25 m/s. B...
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