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Please help with kinematics... The question is given in the image...

Please help with kinematics... The question is given in the image...

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Grade:11

1 Answers

Mahima Kanawat
1010 Points
3 years ago
Dear student 
a = v.dv/dx
a.dx = v.dv
Integrate both sides
a.dx is Integration, means area
Area of trapezium is 75
75 = (v2/2)vf5(3)1/2
On solving 
v2 =225
v =15 m/s 
WITH REGARDS 
MAHIMA 
ASKIITIANS FORUM EXPERT 
 

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