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
        The velocity of particle is zero at t=o. a)acc. at t = 0 muct be zer. b)acc. at t = 0 may be zero. c) if acc. is zero from t = o to t = 10 s, the speed is also zero in this interval.. d) if speed is zero from t= 0 to t = 10s, the acc.is zero in this interval........Justify your ANSWERS.
10 years ago

Answers : (1)

AskIITianExpert Srijan.iitd
8 Points
							

the answers are b c d

 

a is incorrect because an accelerated particle may have zero velocity at some point of time like a stone thrown up have zero velocity at highest point despite being constantly accelerated.

b is correct because it s possible that a particle dont experience any force and stay at rest.

c is correct because without any acceleration speed of any particle canot change.

d is correct because there is no change in speed or velocity so there was no acc.

10 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

  • 731 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