1
You visited us
1
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard XII
Physics
The 'e' Equation
The shortest ...
Question
The shortest possible time required by the boat to cross the river will be:-
A
125
s
e
c
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
250
s
e
c
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
500
s
e
c
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
250
√
3
s
e
c
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is
A
125
s
e
c
Shortest possible time will be when boat makes no angle with
A
B
i.e vertical speed is
2
m
/
s
.
(Refer to Image)
t
=
d
i
s
t
a
n
c
e
s
p
e
e
d
=
500
m
4
m
/
s
=
125
s
e
c
Suggest Corrections
0
Similar questions
Q.
If the boat crosses the river in shortest possible time, then its drift will be:-
Q.
A boat crosses a river of width 200m in the shortest time and is found to experience a drift of 100m is reaching the opposite bank. The time taken now is 't'. If the same boat is to cross the river by shortest path, the time taken to cross will be:
Q.
Velocity of a boat in still water is
13
m
/
s
. If the water in a river flows with a velocity of
5
m
/
s
and the width of the river is
156
m
, what is the difference in time taken by the boat to cross the river in the shortest possible path and the shortest possible time? (in seconds)
Q.
Velocity of a boat in still water is
13
m
/
s
. If the water in a river flows with a velocity of
5
m
/
s
and the width of the river is
156
m
, what is the difference in time taken by the boat to cross the river in the shortest possible path and the shortest possible time?
Q.
The speed of a boat in still water is
√
5
m/s
. While crossing a river, the average speed of the boat is
3
m/s
. If boat crosses the river in the shortest possible time, what is the speed of flow of water?
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
Realistic Collisions
PHYSICS
Watch in App
Explore more
The 'e' Equation
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