a fighter plane moved on a straight path at a speed of 120km?hr for 10 min and returned to the same point at speed of 100km/hr its average speed is 1)102km/hr 2)105km/hr 3)109km/hr 4)110km/hr
Answers
Answered by
1
Answer:
The 4th one
Explanation:
because the 110km presents that when a fighter plane moved it when half straight at a half speed ...
hope this helps
Answered by
1
Answer:
The correct option is 4) 110 km/hr.
Explanation:
Let the 120 km/hr speed be V1
and, 100 km/hr speed be V2
Average Speed = V1 + V2 / 2
= 120+100/2 = 220/2
= 110 km/hr {answer}.
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