A truck travels for 2.5 hours at an average speed of 70 mph (31.3 m/s) on I-70 a

Question

A truck travels for 2.5 hours at an average speed of 70 mph (31.3 m/s) on I-70 across central Kansas. Assuming the truck moves in approximately a straight line, how far did it go in the first half hour. (1 hour = 3600s) A.) 70 km B.) 56 km C.) 338 km D.) 113 km E.) 35 km
A truck travels for 2.5 hours at an average speed of 70 mph (31.3 m/s) on I-70 across central Kansas. Assuming the truck moves in approximately a straight line, how far did it go in the first half hour. (1 hour = 3600s) A.) 70 km B.) 56 km C.) 338 km D.) 113 km E.) 35 km
A.) 70 km B.) 56 km C.) 338 km D.) 113 km E.) 35 km

Explanation / Answer

distance travelled by the truck is

             d = v t

                 = (31.3 m/s)(3600 s) = 112.6 km = 113 km

Answer is (D)

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