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#1 2016-12-07 21:13:10

markosheehan
Member
Registered: 2016-06-15
Posts: 51

particle accelerating

a particle passes point P with speed 10 m/s   and moves in a straight line with uniform acceleration to a point Q .  in the first second of motion after passing P it travels 14 m.  in the last  5 seconds of motion  before reaching Q  it travelled 7/10   of  |PQ|. find the acceleration of the particle and the distance from P to  Q. i found out the acceleration by using uvast equations.     s=ut +.5at^2     14=10(1)+.5(a)(1)^2     a=8 . however i dont know how to find the distance

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#2 2016-12-08 04:51:11

thickhead
Member
Registered: 2016-04-16
Posts: 1,086

Re: particle accelerating


{1}Vasudhaiva Kutumakam.{The whole Universe is a family.}
(2)Yatra naaryasthu poojyanthe Ramanthe tatra Devataha
{Gods rejoice at those places where ladies are respected.}

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#3 2016-12-08 05:31:07

markosheehan
Member
Registered: 2016-06-15
Posts: 51

Re: particle accelerating

that is the right answer but how did you do it??

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#4 2016-12-08 14:50:02

thickhead
Member
Registered: 2016-04-16
Posts: 1,086

Re: particle accelerating


{1}Vasudhaiva Kutumakam.{The whole Universe is a family.}
(2)Yatra naaryasthu poojyanthe Ramanthe tatra Devataha
{Gods rejoice at those places where ladies are respected.}

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