Speed is defined as how fast an object is traveling or moving with respect to time. The speed is the distance with respect to time. Speed SI unit is meter per second or m/s.
The speed of Sam and Thomas is 128 km/h.
Given:
Distance covered by Sam and Thomas = 200 miles
1 miles = 1.60 kilometers
200 miles = 1.60 x 200 = 320 kilometers
Time takes to cover a distance = 2.5 hours
As we know:
Speed = [tex]\dfrac{\text {Distance}}{\text{time}}[/tex]
Speed = [tex]\dfrac{320}{2.5}[/tex]
Speed = 128 km/h.
Thus, the speed of Sam and Thomas is 128 km/h.
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