A car movies at a constant speed of 60km/h for 1km and 40km/h
Answer (1)
Student Expert
25th Oct, 2019
Hello there!
Greetings!
You haven't completed your question but as far ss I understood , you want to know the average speed.
Now,For 1st Km , speed is 60 km/hr and distance is1 km, then
Time = distance/speed = 1/60 Km/hr
For next 1 Km, speed is 40 km/hr and distance is 1 km,
so Time
= distance/speed = 1/40 Km/hr
Now, we know that,
Average Speed =Total Distance / Total Time
= (1 + 1) / (1/60 + 1/40)
= 2 × 2400/100
= 48 Km/hr
Hence ,the average speed of the car is 48 Km/hr
Thankyou
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