A person leans outof a train moving with uniform velocity and drops acoin. How does the path of motion of the coin appear to a co-passenger and a person standing outside the train near the rail tracks ?

A person leans outof a train moving with uniform velocity and drops ac

1.	A person leans outof a train moving with uniform velocity and drops acoin. How does the path of motion of the coin appear to a co-passenger and a person standing outside the train near the rail tracks ?
Answer» SOLUTION :When the coin is dropped fromthe train , due to inertia of MOTION it hasa horizontal component of velocity equal to that of the train. Simultaneously , it EXPERIENCES a vertical downward acceleration due to the FORCE of gravity. If the train.svelocity is v , the velocity of the co-passenger is also, v. Therefore, with respect to this person horizontal component of the velocity of the coin is , v-v=0. so, the passenger will see the coin dropvertically downwards due to the ACTION of gravity. With respect to any person standing outside the train near the rail tracks, the coin will have both horizontal and vertical movements. Thus , it is essentially aprojectile motion, and the coin follows a parabolic path.