two person are running towards each other.they are 37m apart

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two person are running towards each other.they are 37m apart.if one is accelerating from rest at 0.5m/s^2 and the other was a;ready moving at 3.1m/s and maintains herspeed.
a)how long before they crunch together
b) how fast was the accelerating player going
c)how far has each person run
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两个人都奔向对方。他们的距离是37米。如果一个人从静止加速在0.5米/秒^ 另一个是，一直移动3.1米/秒，并保持他的速度。
a）他们是什么时候碰在一起
b）加速的人的速度是什么
c）两个人分别跑了多少

a) 1/2 *0.5*t^2 + 3.1*t = 37
t = 7.4543 s
b) v = 0.5* 7.4543 = 3.72715 m/s
c) 1/2 *0.5*t^2 = 1/2 *0.5*7.4543 ^2 = 13.8916 m
3.1*t = 3.1* 7.4543 = 23.1083 m

They are right_____from each other If two people are not like each other.We always say they are They are quarreling ________ with each other. happy they are-----------(see)each other. they are quiet【】 from each other They are happy to see each other they know waht each other are doing They are being a____ with each other. They are twins .They are s_____ to each other. they are across from each other还是they are next to each other .They aren't very kind to each other, are they? They are good friends.They never q__________ with each other