Question
Question 45:
If the displacement of an object is proportional to the square of time, then the object is moving with :
(a) uniform velocity
(b) uniform acceleration
(c) increasing acceleration
(d) decreasing acceleration
Found 5 tutors discussing this question
Discuss this question LIVE
5 mins ago
Text solutionVerified
Answer:
We are given with the relationship that,
x = kt2
Differentiating it twice we get,
v = 2kt
a = 2k
Where,
v - velocity
a - acceleration
So, the answer is
(b) Uniform acceleration
x = kt2
Differentiating it twice we get,
v = 2kt
a = 2k
Where,
v - velocity
a - acceleration
So, the answer is
(b) Uniform acceleration
Was this solution helpful?
24
Share
Report
One destination to cover all your homework and assignment needs
Learn Practice Revision Succeed
Instant 1:1 help, 24x7
60, 000+ Expert tutors
Textbook solutions
Big idea maths, McGraw-Hill Education etc
Essay review
Get expert feedback on your essay
Schedule classes
High dosage tutoring from Dedicated 3 experts
Practice more questions from Physics (Lakhmir Singh)
Q1
Question 44:
The area under a speed-time graph represents a physical quantity which has the unit of :
(a) m
(b) m2
(c) m s−1
(d) m s−2
(a) m
(b) m2
(c) m s−1
(d) m s−2
Q2
Question 45:
If the displacement of an object is proportional to the square of time, then the object is moving with :
(a) uniform velocity
(b) uniform acceleration
(c) increasing acceleration
(d) decreasing acceleration
(a) uniform velocity
(b) uniform acceleration
(c) increasing acceleration
(d) decreasing acceleration
Q3
Question 46:
Four cars A, B, C and D are moving on a levelled, straight road. Their distance-time graphs are shown in the given figure. Which of the following is the correct statement regarding the motion of these cars?
Figure
(a) car A is faster than car D
(b) car B is the slowest
(c) car D is faster than the car C
(d) car C is the slowest
View allFigure
(a) car A is faster than car D
(b) car B is the slowest
(c) car D is faster than the car C
(d) car C is the slowest
Practice questions from Physics (Lakhmir Singh)
Question 2
Views: 6,015
Question 3
Views: 6,150
Question 4
Views: 5,818
Practice more questions from Motion
Question 1
Easy
Views: 5,318
Question 2
Views: 5,944
(ii) A body starting from rest travels with uniform acceleration. If it travels 100 m in 5 s, What is the value of acceleration?
Practice questions on similar concepts asked by Filo students
Question 1
Views: 5,566
Question 2
Views: 5,534
Question 3
Views: 5,633
What is Planck constant and kibble balance and how they are related with electromagnetic force.
Question 4
Views: 5,360
Stuck on the question or explanation?
Connect with our Science tutors online and get step by step solution of this question.
231 students are taking LIVE classes
Question Text | Question 45:
If the displacement of an object is proportional to the square of time, then the object is moving with : (a) uniform velocity (b) uniform acceleration (c) increasing acceleration (d) decreasing acceleration |
Topic | Motion |
Subject | Science |
Class | Class 9 |
Answer Type | Text solution:1 |
Upvotes | 24 |