A bus appears to go with a speed of 25 km/hr to a car driver, driving at the rate 7km/hr northwards. If the bus actually travels in East direction, it's speed is
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85
bus moves in East direction with 25km/h
so, velocity vector = 25 i km/h
car moves in North direction with 7km/h
so, velocity vector of car = 7 j km/h
velocity of bus with respect to car = velocity of bus - velocity of car
=25 i - 7 j
manitude of velocity of bus wrt car = √(25² + 7²) = √(625+49) = √674 km/h
hence , speed = √674 km/h
so, velocity vector = 25 i km/h
car moves in North direction with 7km/h
so, velocity vector of car = 7 j km/h
velocity of bus with respect to car = velocity of bus - velocity of car
=25 i - 7 j
manitude of velocity of bus wrt car = √(25² + 7²) = √(625+49) = √674 km/h
hence , speed = √674 km/h
Answered by
55
Answer:
Answer is 24 km/h.
I hope this helps you..
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