Alexis walked 1.5 km to her house in 0.5 hours. What is Alexis’ speed?
1 answer:
Answer:
Speed = 3 [km/h]
Explanation:
To solve this problem we must use the definition of speed which relates the distance traveled for a while.
Distance = 1.5 [km] = 1500 [m].
time = 0.5 [hr] = 1800 [s]
Speed = Distance/time
Speed = 1.5/0.5
Speed = 3 [km/h] or 1500/1800 = 0.8333[m/s]
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t=10s
v=u+at
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=> 33-22=10a
=> 10a=11
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