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A bus appears to move northwards at a sp...

A bus appears to move northwards at a speed of ` 20sqrt3 " km h"^(-1)` to a man driving his car eastwards with speed ` 20 " km h "^(-1)`. Find the velocity of the bus w.r.t ground.

Text Solution

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The correct Answer is:
40 km/`h^(-1) 30^(@)` east of north .
`barv_("bus")=barv_("car")+barv_("bus w.r.t car")`
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