Question

The basic unit of speed is: km/min (ii) m/min km/h (iv) m/s 10. A car moves with a speed of 40 km/h for 15 minutes and then with a speed of 60 km/h for the next 15 minutes. The total distance covered by the car is: 100 km i i i i (ü) 25 km 15 km (iv) 10 km​

Answer 1

Answer:

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Explanation:

Answer 2

Answer:

For 1st its, m/s

For 2nd its 25km.

Explanation:

speed for 1st 15 min= 40km/h

time =15 min -15/60hr

distance1= speed×time= 40×1/4=10 km

speed fir next 15 min {60km/h

time=15 min= 1/4 hr

distance 2=speed×time

60×1/4=15 km

total distance= 10+15=25km.