1
You visited us
1
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard XII
Physics
Motion Under Variable Acceleration
A vehicle mov...
Question
A vehicle moving at a speed v needs to be decelerated at a constant rate to make it stop after a certain time. What is the distance travelled before the vehicle completely stops?
Open in App
Solution
Dear student
L
e
t
t
h
e
c
o
n
s
tan
t
d
e
c
e
l
e
r
a
t
i
o
n
p
r
o
d
u
c
e
d
i
s
a
.
U
sin
g
t
h
e
f
o
r
m
u
l
a
v
2
-
u
2
=
2
a
x
0
2
-
u
2
=
2
×
×
(
-
a
)
×
x
x
=
v
2
2
a
R
e
g
a
r
d
s
Suggest Corrections
0
Similar questions
Q.
A vehicle moving at a speed of 15 m/s is stopped
by applying brakes which produce a uniform acceleration of -0.5
m
/
s
2
. The distance covered by the vehicle before it stops is:
Q.
A vehicle moving with speed
30
k
m
/
h
on a straight road can be stopped in
6
m
distance by applying brakes. If same vehicle is moving with
60
k
m
/
h
and brakes provide double retardation then vehicle will stop after travelling :
Q.
A vehicle travelling at
30
m
/
s
stops at a distance of
50
m
decelerating uniformly. A force of
9000
N
is exerted on it by the brakes. What is the work done
by the brakes?
Q.
A car moving at a speed
v
is stopped in a certain distance when the brakes produce a deceleration
a
. If the speed of the car was
n
v
, what must be the deceleration of the car to stop it in the same distance and in the same time?
Q.
A vehicle travelling on dry, level pavement at 80 kmph had the brakes applied. The vehicle travelled 76.5 m before stopping. What is the coefficient of friction that has developed ?
View More
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
Related Videos
Motion Under Variable Acceleration
PHYSICS
Watch in App
Explore more
Motion Under Variable Acceleration
Standard XII Physics
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
AI Tutor
Textbooks
Question Papers
Install app