You need to fill in the blanks
a) 2 trains are moving towards each other along a straight line...
You need to fill in the blanks
a) 2 trains are moving towards each other along a straight line. to find the speed of one train relative to the other train you need to their speeds.
b) 2 trains are moving in the same direction along a straight line. to find the speed of one train relative to the other train, you need to their speeds.
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