MY CART (5)

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

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: R

There are no items in this cart.
Continue Shopping
Menu
The Conqueror Grade: 11
        

  1. A cord is used to vertically lower an initially stationary block of mass M at a constant downward acceleration of g/4. When the block has fallen a distance d, find a) The work done by cord's force on the block, b) the work done by gravitational force on the block, c) the kinetic enery of the block and d) the speed of the block.

  2. A 0.269 kg block of cheese lies on the floor of a 650 kg elevator cab that is being pulled upward by a cable through distance d1= 2.40 m and then through distance d2 = 10.5 m a)Through d, if the normal force on the block from the floor has constant magnitude Fn = 5.00 N, how much work is done on the cab by the force from the cable? b)Through d2, if the work done on the cab by the constant force from the cable is 98.60 kJ, what is the magnitude of Fn

6 years ago

Answers : (1)

SAGAR SINGH - IIT DELHI
879 Points
										

Dear student,


The correct option is b) in both the cases...


Apply newton's laws of motion to verify the result.


 


















Please feel free to ask your queries here. We are all IITians and here to help you in your IIT JEE preparation.


All the best.


Win exciting gifts by answering the questions on Discussion Forum. So help discuss any query on askiitians forum and become an Elite Expert League askiitian.


Now you score 5+15 POINTS by uploading your Pic and Downloading the Askiitians Toolbar  respectively : Click here to download the toolbar..


 


Askiitians Expert


Sagar Singh


B.Tech, IIT Delhi

















6 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies
  • Complete JEE Main/Advanced Course and Test Series
  • OFFERED PRICE: R 15,000
  • View Details
Get extra R 3,000 off
USE CODE: CART20
  • Kinematics & Rotational Motion
  • OFFERED PRICE: R 600
  • View Details
Get extra R 120 off
USE CODE: CART20

Ask Experts

Have any Question? Ask Experts

Post Question

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