Question

1. A car travels 100km East and then 100 km south. Finally it comes back to the starting point by the South-East route. Through the journey the speed is constant at 60kmh-1.what is the average velocity for the whole journey, if the time taken is 3.3hrs?
a) 60kmh b)90 kmh¹ c) 180km-¹ d)0kmh*¹​

Answer 1

Answer:

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Step-by-step explanation:

Correct option is

d

0km h

−1

we know that,

Velocity=

TimeTaken

Displacement

Now,

Displacement = Final position − Initial position

Since the car comes back to its starting point, so, displacement =0

therefore, Velocity=

3.3hr

0

=0km h −1

So option (d) is the correct answer