Respuesta :
If you travel at a constant speed of 75 mph, it will take you 1 hour 17 minutes approx. to reach the city.
We know that ,
1mph = 1.6 km/hr.
multiplying both by 75,
75 mph = 120km/hr.
Now , it takes 1hr to travel 120 km
120 km = 1 hour
multiplying both by 1.17
120 x 1.17 km= 1 x 1.17 hrs.
140 km = 1.17 hours (approx.)
And 1.17 hours can also be said as 1 hour 17 minutes.
Hence, it will take you 1 hour 17 minutes approx. to reach the city.
In everyday use and in kinematics, the speed of an object is the magnitude of the change of its position over time or the magnitude of the change of its position per unit of time; it is thus a scalar quantity.
The average speed of an object in an interval of time is the distance travelled by the object divided by the duration of the interval whereas instantaneous speed is the limit of the average speed as the duration of the time interval approaches zero. Speed is not the same as velocity.
Learn more about speed here : https://brainly.com/question/4931057
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