Two cars are moving with velocities of 72km/hr and 45 km/hr towards east and west direction respectively. Find their relative velocity.
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Here's ur answer
Velocity of 1st car = V₁ = -72 km/hr (Moving in opposite direction)
Velocity of 2nd car = V₂ = 45 km/hr
Hence,
Relative velocity = V₁₂ = -V₂₁
V₁₂ = V₁ - V₂
= -72-45
= -117 km/hr
V₂₁ = V₂ - V₁
= -V₁₂
= 117 km/hr
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