Question

 A passenger in a moving train tosses a coin that falls behind him. Observing this statement what can you say about the motion of the train?

1.

Speed of train is increasing with time

2. Speed of train is decreasing with time
3. The motion is along circular tracks 
4. The motion is Uniform

Answer 1

Correct Answer - Option 1 :

Speed of train is increasing with time

Explanation:

• A body is said to be accelerated if its speed or direction is changing with time. 
• The law of inertia says that the body does not changes its position unless an external unbalanced force is acting on it. 
• When the passenger tosses the coin in an accelerated train (increasing speed), then the train moves with more horizontal speed than the coin. 
• Hence, the train moves ahead and the coin falls behind. 

The correct option is 'Speed of train is increasing with time.'

• If the speed of the train has been decreasing, the coin will fall ahead. 
• If  the train is moving on a circular track, the coin would have been fallen in a different direction. 
• The Law of inertia is the first law of motion.