SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Jamie is driving to the airport. Her flight leaves in two hours and she is 100 miles away from the airport. What speed must she travel in order to be on time for her flight?
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At least 50 mph
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At least 45 mph
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At least 40 mph
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At least 35 mph
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Explanation:
Detailed explanation-1: -That is speed = distance ÷ time. Or to put it another way distance divided by speed will give you the time. Provided you know two of the inputs you can work out the third. For example if a car travels for 2 hours and covers 120 miles we can work out speed as 120 ÷ 2 = 60 miles per hour.
Detailed explanation-2: -Answer and Explanation: It would take 2 hours to travel 90 miles at 45 miles per hour.
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