Questions
A car is moving on a straight road due north with a uniform speed of 50 km h-1 when it turns left through 90o. If the speed remains unchanged after turning, the change in the velocity of the car in the turning process is
a
zero
b
502kmh−1S−W direction
c
502kmh−1N−W direction
d
50kmh−1 due west
detailed solution
Correct option is B
v→i=50j^⇒v→f=−50i^Δv→=v→f−v→i=−50i^−50j^|Δv→|=502km/h,SWTalk to our academic expert!
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