A car covers 60 km in the first hour, 70 km in the second hour, and 50 km in the third hour. Is the motion uniform? Class 7
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A car covers 60 km in the first hour, 70 km in the second hour, and 50 km in the third hour. Is the motion uniform? Class 7
A car covers 60 km in the first hour, 70 km in the second hour, and 50 km in the third hour. Is the motion uniform? Justify your Answer. Find the average speed of the car. Class 7
Answer:
The car covers different distances in each hour. Hence, the motion of the car is nonuniform.
Total distance = 60 km + 70 km + 50 km
= 180 km
Total time = 3 hours
Average speed = [latex]\frac{\text { Total distance travelled }}{\text { Total time taken }} [/latex]
= [latex]\frac{180 \mathrm{~km}}{3 \mathrm{~h}}[/latex]
= 60 km/h
Hence, the average speed of the car is 60 km/h