# Answer on Mechanics | Relativity Question for desaray

Question #14876

Simpson drives his car with an average velocity of 48.0 km/hto the east. How long will it take hime to drive 144 km on astraight highway? how much time would he save by increasing hiaverage velocity to 56.0 km/h to the east?

Expert's answer

It will take

T1 = 144/48 = 3 hours

to drive 144 km on a straight highway.

He will save

T = T1 - 144/56 = 3 - 144/56 = 3/7 hour

if he'll increase his average velocity to 56.0 km/h.

T1 = 144/48 = 3 hours

to drive 144 km on a straight highway.

He will save

T = T1 - 144/56 = 3 - 144/56 = 3/7 hour

if he'll increase his average velocity to 56.0 km/h.

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