General Knowledge - Physics - Discussion
Discussion Forum : Physics - Section 1 (Q.No. 57)
57.
On a stationary sail boat, air is blown from a fan attached to the boat. The boat
Discussion:
59 comments Page 3 of 6.
Khan said:
9 years ago
It has to move.
Yousuf Shah said:
9 years ago
It will move in opposite direction.
Shreyas shrihari taklikar said:
9 years ago
Boat will not move because external force is nedded to move boat and fan is blowing air which is internal force. So their must be an external for producing movement of boat.
Teena said:
9 years ago
It is mentioned that fan is attached to the boat. Not that it is on the boat.
The boat will definitely move in the opposite direction as per as Newton's THIRD law of motion.
The boat will definitely move in the opposite direction as per as Newton's THIRD law of motion.
Ashita Verma said:
9 years ago
Why does the boat does not move?
Gaurav said:
9 years ago
The boat will move people. As there is no given information about the weight of boat or the thrust provided by fan, so we have to assume both the quantities and according to that the boat will move.
And the fan is also attached to the boat for the people who didn't even read the question carefully.
And the fan is also attached to the boat for the people who didn't even read the question carefully.
Maryam said:
9 years ago
I can't understand why boat will not move, And the answer is totally wrong.
According to me, it should move.
According to me, it should move.
SURENDER SINGH said:
9 years ago
Boat will move in the opposite to the direction of air is blowing because the mass of air is being a drag by a fan and at air will give thrust to the boat.
Tarun said:
9 years ago
The boat can move in the opposite direction of the fan. As there is not a description of the size of the fan. That's why the answer is correct, otherwise, AIRBOATs are there.
Law of Energy said:
10 years ago
Dear friends, if the fan is operated through electricity, then that extra electric energy must show some effect when it becomes mechanical! by law of conservation of energy.
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