science
Grade-7
Easy
Question
Leela sees her friends playing by hanging on the branch of a tree and wonders why the branch does not move at all. She then tried hanging herself on the same branch, and the branch still did not move. What could be a possible reason for this?
- The branch is under the action of unbalanced forces.
- The branch is thick and strong.
- The branch also applies a pulling force opposite Leela's pulling force so that the forces are balanced.
- None of the above
Hint:
The branch also applies pulling force, so the forces are balanced.
The correct answer is: The branch also applies a pulling force opposite Leela's pulling force so that the forces are balanced.
- When Leela hangs on the branch she applies force in towards down direction same as gravitational pull.
- Also, the branch will apply some force opposite to Leela to resent it.
- The reason for branch not moving is that there is net force equal to zero. Also, called a balanced force.
- And when the force applied on a body is balanced there is no type of movement.
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