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`        The elevator E has a mass of 3000kg when fully loaded and is connected as shown to a counterweight W of mass 1000kg. Determine the power in kilowatts delivered by the motor(a)when the elevator is moving down at a constant speed of 3m/s(b)when it has an upward velocity of 3m/s and a deacceleration of 0.5m/s^2 Answers:   (a) -30kw  (b) 19.5kw`
11 months ago

Vikas TU
11767 Points
```							Dear student Draw free body diagram on w T = 1000+F Draw FBD on E , 2T = 3000020000+2T =300002T = 10000T =5000Draw FBD on Motor P = 5000*Vc Kinematic 2Xe =Xc 2Ve = Vc Vc = -6P = -6*5000 = -30000KW /1000=>-30Kw Hope this heps
```
11 months ago
Shakshi ravi
15 Points
```							Thanku...I also done 1st part but what about 2nd part. I tried my best in solving 2nd part but my anser is not coming same as written in book. So please try to solve the 2nd part.....thanku
```
11 months ago
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Course Features

• 110 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions