a car travels by a uniform speed of 30 km per hour for 30 minutes and then a uniform speed of 60 km per hour for 30 minutes calculate average speed of the car
Answers
Answered by
1
Answer:
Speed¹=30km/hr
Time¹=30mins
Distance ¹=s¹×t¹
→30×30/60
→15km
Speed²=60km/hr
Time²=30mins
Distance²=s²×t²
→60×30/60
→30km
We know,
Average speed
=Total distance covered/Total time taken
→d¹+d²/t¹+t²
→15+30/30+30
→45/60
→3/4
→0.75km/hr
Explanation:
Distance=s×t
Average speed
=total distance covered/total time taken
Similar questions