3.11 Read each statement below carefully and state with reasons and examples, if it is true or false;
A particle in one-dimensional motion
(a) With zero speed at an instant may have non-zero acceleration at that instant
(b) With zero speed may have non-zero velocity
(c) With constant speed must have zero acceleration
(d) With positive value of acceleration must be speeding up
3.11 Read each statement below carefully and state with reasons and examples, if it is true or false;
A particle in one-dimensional motion
(a) With zero speed at an instant may have non-zero acceleration at that instant
(b) With zero speed may have non-zero velocity
(c) With constant speed must have zero acceleration
(d) With positive value of acceleration must be speeding up
-
1 Answer
-
3.11
(a) True – zero speed may have a non zero instantaneous non-zero acceleration
(b) False – zero speed will always make zero velocity
(c) True – constant speed will have zero acceleration
(d) False – If the positive value of acceleration is in the direction of its motion then it can speed up
Similar Questions for you
Please find the solution below:
[h] = ML2T-1
[E] = ML2T-2
[V] = ML2T-2C-1
[P] = MLT-1
According to question, we can write
10 =
Average speed
(d) Initial velocity
Final velocity
Change in velocity
Momentum gain is along
Force experienced is along
Force experienced is in North-East direction.
Taking an Exam? Selecting a College?
Get authentic answers from experts, students and alumni that you won't find anywhere else
Sign Up on ShikshaOn Shiksha, get access to
- 65k Colleges
- 1.2k Exams
- 687k Reviews
- 1800k Answers