Question

two trains are moving in opposite.train A moves east with a speed of 20 m/s and train B moves west with a speed of 30 m/s. What is the relative velocity of B w.r.t A

Answer 1

$\huge{\bold{\underline{\underline{....Answer....}}}}$

$\huge{\bold{\underline{Given:-}}}$

Velocity of train "A" moving east is 20 m/s.

Velocity of train "B" moving west is 30 m/s.

$\huge{\bold{\underline{Explanation:-}}}$

As they are moving in east and west direction which is directly opposite to each other.

$\large{v_{ba} = v_{b} - v{a}}$

As compared to velocity of train A is negative as it moves in opposite direction.

$\large{v_{ba} = v_{b} - (-v{a})}$

$\large{v_{ba} = 30 + 20}$

$\large{v_{ba} = 50 m/s}$

$\huge{\boxed{\boxed{ v_{ba} = 50 m/s}}}$

So, the relative velocity is 50 m/s.

Answer 2

Answer:

VBA=-50m/s

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