Question

a girl cycle down from her house at 9:00 a.m. and has to reach her school at 10:00 a.m. she travels at 15 km per hour if distance between her house and school is 19 km can she reach her school by 10:15 a.m. if she cannot what distance has she to cover to reach the school​

Answer 1

Answer:

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Answer 2

Explanation:

we can see from the given figure that green car is the fastest car as it overtakes the white car and is very close to the blue car (initially green car was far behind the blue car).

To calculate the speed of the fastest car i.e. green car, we have scaled road. each marking is of 1 cm.

Distance travelled by a green car, which is measured by scale is 5 cm.

Therefore, 5 cm is equivalent to 500 m.

Distance travelled by car = 500 m

Time interval between the two photographs = 10 s

Speed=Distance coveredTime taken =50010=50 m/sSpeed=Distance coveredTime taken =50010=50 m/s

So, the speed of fastest car is 50 m/s