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When you cut the pen in the thread.. What happens to the thread? What could have caused the pen's motion?

Sagot :

The thread will be cut. The pen will go down, the pen's motion is caused by the absence of tension force that is pulling it up/ opposing the gravity and the gravitational force that pulls it down.
When the thread has been cut off...the thread falls down and the FORCE OF GRAVITY is applied to it...