Question

A boat is moving on the river and following the path as shown by the dashed line. Both the boatmen are facing front and rafting with equal force in the directions shown by the arrows in the options. Which of the options will help the boat to take a right turn?

• A.

  

• B.

  

• C.

  

• D.

  

Answer 1

The Correct Option is D

To determine which option allows the boat to take a right turn, we need to analyze the direction of forces exerted by the boatmen. When boatmen exert force, the movement of the boat depends on the net force direction and the resultant torque on the boat. For the boat to take a right turn, the force on the left should be greater than the force on the right or the left-side force should be positioned in a way to create a clockwise torque.

Let's evaluate the options:

After checking each figure, Option 4 shows that the left-side boatman is exerting the force to the side which will generate a clockwise rotation force vector, providing the necessary torque for the boat to turn right. Hence, the boat will take a right turn when the forces are as shown in Figure 4.