CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Rate of Change

A river havin...

Question

A river having width $500 m$ is flowing with speed $3 k m / h .$ A swimmer who can swim with speed $6 k m / h$ in still water, has to reach directly opposite point on the other bank. He should swim at angle $θ$ with the flow of river. The value of $θ$ is

A

60

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

90

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

135

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

120

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D $120$

Suggest Corrections

thumbs-up

0

Similar questions

Q. A man can swim in still water at a speed of

3 k m / h

. He wants to cross a river that flows at

2 k m / h

and reach the point directly opposite to his starting point.
(a) In which direction should he try to swim (that is, find the angle his body makes with the river flow)?
(b) How much time will he take to cross the river if the river is

500 m

Q. A swimmer swims in still water at a speed

= 5 k m / h

200 m

wide river, having river flow speed

= 4 k m / h r

at point A and proceeds to swim at an angle of

127^{o}

with the river flow direction. Another point B is located directly across A on the other side. The swimmer lands on the other bank at a point C, from which he walks the distance CB with a speed

= 3 k m / h r

. The total time in which he reaches from A to B is

Q. A swimmer can swim in still water with a speed of 3 km/hr. Rate of flow of river is 6 km/hr. If the swimmer swims at angle

60^{o}

with flow of river, find speed of swimmer as seen by person, who is moving in a boat in the river.

Q. A swimmer can swim with velocity of

12 km/h

in still water. Water flowing in a river has velocity

6 km/h

. The direction with respect to the direction of flow of river water he should swim in order to reach the point on the other bank just opposite to his starting point is

^{\circ}

. (Round off to the Nearest Integer) (Find the angle in degree)

Q. A man can swim in still water at a speed of 6 km/h and he has to cross the river and reach just opposite point on the other bank. If the river is flowing at a speed of 3 km/h, he has to swim in the direction

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Rate of Change

MATHEMATICS

Watch in App

explore_more_icon

Explore more

Standard XII Mathematics

Join BYJU'S Learning Program

CrossIcon