Question

Rani cycles for 3/4 an hour from her home to the Cultural Festival held in the city with a speed change of 18km/h. Traveling to the Cultural Festival takes 40% less time compared to the time for the return trip at the same speed change. Calculate the difference in acceleration between the trips to and from the Cultural Festival.

Okay, first i find the value of 3/4(hour) which is 45 mins. Then i divide 18km/h with 3/4 =24km/h²
After that, i find the time reduce which is 40%x3/4hour
=0.3hour
Then i subtract 0.45 hour with 0.3 hour and i get 0.15hour.
After that i calculate the acceleration
18km/h÷0.15hour
=120km/h²
I calculate the difference
120km/h²-24km/h²
=96km/h²
Is my calculation correct?
Your help would be much appreciated!
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Answer 1

Answer:

your calculation is correct