badge image

Enroll For Free Now & Improve Your Performance.

×
User Icon
User Icon
User Icon
User Icon
User Icon

Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Menu
Grade: 10

                        

An elevator and its load have a combined mass of 1600 kg. Find the tension in the supporting cable when the elevator, originally moving downward at 12.0 m/s, is brought to rest with constant acceleration in a distance of 42.0 m.

5 years ago

Answers : (2)

Jitender Pal
askIITians Faculty
365 Points
							235-1962_1.PNG
The negative sign in the acceleration indicates that the elevator is decelerating.
235-1870_1.PNG
Therefore the tension in the supporting cable is 18,438.4 N .
5 years ago
Kushagra Madhukar
askIITians Faculty
605 Points
							
Dear student,
Please find the solution to the problem.
 
Sign convention → Let the downward acceleration and velocity to be positive and the upward to be negative
We have, v2 – u2 = 2as
Hence, a = (02 – 122)/2 x 42 = – 1.714 m/s2
Now, mg – T = ma
Hence, T = m(g – a)
              = 1600(9.81 – ( – 1.714))
              = 1600 x 11.524
              = 18438.86 N = 18.44 kN
 
Thanks and regards,
Kushagra
2 months ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies


Course Features

  • 101 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

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


Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details