In this lesson, we will learn how to calculate the relative velocity of a particle with respect to another and how to calculate a relative velocity vector.

Q1:

Two cars π΄ and π΅ are moving with velocities 41 km/h and 32 km/h, respectively, in the same direction. Determine π£ π΄ π΅ .

Q2:

A police car π΄ moving on a straight road at 71 km/h took notice of another car π΅ and a bicycle πΆ moving on the same road. Car π΅ was coming from the opposite direction and appeared to be traveling at a relative speed of 181 km/h, whereas the bicycle appeared to be moving backward at a relative speed of 37 km/h. Find the actual speeds π£ π΅ of car π΅ and π£ πΆ of bicycle πΆ .

Q3:

A train π΄ of length 65 m was moving at 74 km/h when it passed another train π΅ of length 210 m travelling at 106 km/h in the other direction. How long did it take for train π΄ to completely pass train π΅ ?

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