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: 11

                        

A force F1 acts on a particle so as to accelerate it from rest to a velocity v. The force F1 is than replaced by F2 which decelerates it to rest. (a) F1 must be equal to F2 (b) F1 may be equal to F2 (c) F1 must be unequal to F2 (d) None of these

8 years ago

Answers : (1)

Aman Bansal
592 Points
							

Dear Jeet,

Even a very small force can accelerate an object at rest, but for smaller force the acceleration will be smaller. F1 accelerates the body to velocity v, in some finite time which is not mentioned. Force is a vector quantity, and by convention F1 is positive as it is along the direction of motion of the object.

The other force F2 decelerates the object. Any finite force can decelerate a moving object. But this force opposes the direction of motion of the object so, it is negative.

Thus we conclude, the force F 1 and F 2 must be differentEven if they have same magnitude their direction will be opposite.

Correct answer is (c)

 Cracking IIT just got more exciting,It s not just all about getting assistance from IITians, alongside Target Achievement and Rewards play an important role. ASKIITIANS has it all for you, wherein you get assistance only from IITians for your preparation and win by answering queries in the discussion forums. Reward points 5 + 15 for all those who upload their pic and download the ASKIITIANS Toolbar, just a simple  to download the toolbar….

So start the brain storming…. become a leader with Elite Expert League ASKIITIANS

Thanks

Aman Bansal

Askiitian Expert


8 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies


Course Features

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


Course Features

  • 18 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