1. The car moves in a straight line from position Ô to s = 6t2 + 5t m where t is in sec. Determine the velocity and acceleration when t= 5s. (10 MARKS) 2. The crate has a mass of 80kg and is being towed by a chain which is always directed at 20 from the horizontal as shown.

1. The car moves in a straight line from position Ô to s = 6t2 + 5t m where t is in sec. Determine the velocity and acceleration when t= 5s. (10 MARKS) 2. The crate has a mass of 80kg and is being towed by a chain which is always directed at 20 from the horizontal as shown.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter6: Power Flows

Section: Chapter Questions

Problem 6.26P

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Concept explainers

Speed control of motor

Speed control by DC motor-speed controller is required to realize variable speed drive. Whenever a motor drives a particular load, it is called drive, and variable speed drive refers to a load requiring variable speed. All this is obtained by a DC motor speed controller.

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