suppose a car travels first 10 m in 2 sec and next 50m in 5 sec. what is its average speed?
Answers
Answered by
1
Answer:
the answer is (50m)
Explanation:
10×5
Answered by
2
Given :
• A car travels first 10 m in 2 seconds and next 50 m in 5 seconds.
To find :
• Average speed of the car
Solution :
Formula to calculate Average speed :-
- Average speed = Total distance travelled ÷ Total time taken
we have,
- Distance₁ = 10 m
- Time₁ = 2 seconds
- Distance₂ = 50 m
- Time₂ = 5 seconds
Total distance travelled = Distance₁ + Distance₂
→ Total distance travelled = 10 + 50
→ Total distance travelled = 60
Therefore, the total distance travelled by the car = 60 m
Total time taken = Time₁ + Time₂
→ Total time taken = 2 + 5
→ Total time taken = 7
Therefore, total time taken = 7 seconds
Substituting the values in the formula of average speed :-
→ Average speed = 60 ÷ 7
→ Average speed = 8.57
Therefore, the average speed of the car = 8.57 km/h
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