On a stationary sail-boat, air is blown at the sails from a fan attached to the boat. The boat will
Remain stationary
Spin around
Move in a direction opposite to that in which air is blown
Move in the direction in which the air is blown
On a stationary sail-boat, air is blown at the sails from a fan attached to the boat. The boat will
The force exerted by the air of fan on the boat is internal and for motion external force is required.