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Motion in a plain problem...please help...question is given in the image....

Motion in a plain problem...please help...question is given in the image....

Question Image
Grade:11

1 Answers

Arun
25763 Points
2 years ago
Well, first we want to find the time in which the particle changes from a positive X speed, to a negative x speed, so we're looking for where x = 0. 

If we use V = V0+at using initial velocity and acceleration, we get: 
0 = 3 + -1(t) 
t = 3 

So, it changes direction along the x axis at 0, and that's it's max x. To find velocity, we use time and it's acceleration along the y axis, so... 
V = V0+at 
V = 0+.5(3) 
V = 1.5 = Answer

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