Class 9 Exam > Class 9 Questions > an object starting from rest Travels 20 metre...
Start Learning for Free
an object starting from rest Travels 20 metre in first 2 seconds and 160 metre in next 4 second what will be the velocity after 7 second from the start
Verified Answer
an object starting from rest Travels 20 metre in first 2 seconds and 1...
Given:
Initial velocity = u =0m/s
Distance travelled =S=20m
time =t=2sec.
From second equation of motion:
S=ut + 1/2 at^2
20= 0*2+ 1/2a2^2
20=2a
a=10m/s^2
velocity at the end of 2sec:
V=u+at
=0+10*2
V=20m/s
After 4sec, it covers a distance of 160m
so,
160=20*4+1/2(a^1)4^2
160=80+2a
8a^1=80
a^1=10m/s^2
It shows acceleration is uniform.
So, velocity at end of 7 sec from start:
V=u+at
= 0 + 10*7
=70m/s
∴ The velocity after 7 sec from the start is 70m/s
This question is part of UPSC exam. View all Class 9 courses
|
|
Explore Courses for Class 9 exam
|
|
Similar Class 9 Doubts
Top Courses for Class 9View all
an object starting from rest Travels 20 metre in first 2 seconds and 160 metre in next 4 second what will be the velocity after 7 second from the start
Question Description
an object starting from rest Travels 20 metre in first 2 seconds and 160 metre in next 4 second what will be the velocity after 7 second from the start for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about an object starting from rest Travels 20 metre in first 2 seconds and 160 metre in next 4 second what will be the velocity after 7 second from the start covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for an object starting from rest Travels 20 metre in first 2 seconds and 160 metre in next 4 second what will be the velocity after 7 second from the start.
an object starting from rest Travels 20 metre in first 2 seconds and 160 metre in next 4 second what will be the velocity after 7 second from the start for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about an object starting from rest Travels 20 metre in first 2 seconds and 160 metre in next 4 second what will be the velocity after 7 second from the start covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for an object starting from rest Travels 20 metre in first 2 seconds and 160 metre in next 4 second what will be the velocity after 7 second from the start.
Solutions for an object starting from rest Travels 20 metre in first 2 seconds and 160 metre in next 4 second what will be the velocity after 7 second from the start in English & in Hindi are available as part of our courses for Class 9.
Download more important topics, notes, lectures and mock test series for Class 9 Exam by signing up for free.
Here you can find the meaning of an object starting from rest Travels 20 metre in first 2 seconds and 160 metre in next 4 second what will be the velocity after 7 second from the start defined & explained in the simplest way possible. Besides giving the explanation of
an object starting from rest Travels 20 metre in first 2 seconds and 160 metre in next 4 second what will be the velocity after 7 second from the start, a detailed solution for an object starting from rest Travels 20 metre in first 2 seconds and 160 metre in next 4 second what will be the velocity after 7 second from the start has been provided alongside types of an object starting from rest Travels 20 metre in first 2 seconds and 160 metre in next 4 second what will be the velocity after 7 second from the start theory, EduRev gives you an
ample number of questions to practice an object starting from rest Travels 20 metre in first 2 seconds and 160 metre in next 4 second what will be the velocity after 7 second from the start tests, examples and also practice Class 9 tests.
|
|
Explore Courses for Class 9 exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup