A boat is sent across the river with a velocity of $8 k m / h$ in a direction perpendicular to flow of river. If resultant velocity of boat is $10 k m / h$ , then velocity of river flow is:

18 k m / h

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

2 k m / h

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

6 k m / h

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

None of these

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

Open in App

Solution

The correct option is C $6 k m / h$
As the boat is sent in a direction perpendicular to flow of water so the net velocity should be $\sqrt[2]{8^{2} + u^{2}} = 10$
where $u$ is velocity of river flow.
Solving the above equation we get $u = 6 K m / h$
Option C is correct.

Suggest Corrections

Similar questions

Q. A boat is sent across the river with a velocity of

8 km/h

in a direction perpendicular to flow of river. If resultant velocity of boat is

10 km/h

, then velocity of river flow is

Q. A boat is sent across a river with a velocity of

3 km/h

. If the resultant velocity of the boat is

5 km/h

, then velocity of the river flow is

Q. A boat is sent across a river with a velocity of 8 km/hr. If the resultant velocity of boat is 10 km/hr,then velocity of the river is :

A boat is sent across a river with a velocity of 8 km per hour. if the resultant velocity of boat is 10 km per hour then calculate the velocity of the river.

Q. A boat goes across a river in shortest possible time with a velocity

12 k m / h

. The magnitude of its resultant speed in flowing water is

13 k m / h

. The magnitude of velocity of water flow in the river is

Join BYJU'S Learning Program

A boat is sent across the river with a velocity of 8km/h in a direction perpendicular to flow of river. If resultant velocity of boat is 10km/h, then velocity of river flow is:

The correct option is C 6km/hAs the boat is sent in a direction perpendicular to flow of water so the net velocity should be 2√82+u2=10where u is velocity of river flow.Solving the above equation we get u=6Km/hOption C is correct.

A boat is sent across the river with a velocity of $8 k m / h$ in a direction perpendicular to flow of river. If resultant velocity of boat is $10 k m / h$ , then velocity of river flow is:

The correct option is C $6 k m / h$
As the boat is sent in a direction perpendicular to flow of water so the net velocity should be $\sqrt[2]{8^{2} + u^{2}} = 10$
where $u$ is velocity of river flow.
Solving the above equation we get $u = 6 K m / h$
Option C is correct.