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```
A body is pushed giving it an initial velocity of 5 m/s and comes to rest after travelling 4.9m .find meu

```
11 months ago

Arun
25141 Points
```							Let,u be initial velocity and v be final velocity.s be displacement and a be the acceleration.K be the coefficient of friction.From kinematics,v² = u² + 2as0 = 52 - 2a(4.9) (since, it's decelerating)a= 50/9.8 = 5.102a = K.g = 0.8 (g is acceleration due to gravity, value = 10m/s²)K = 5.102/9.8 = 0.521
```
11 months ago
Vikas TU
13786 Points
```							Dear student u = 5.6 m/secv = 0s=8mg=9.8m/sec^2v^2 - u^2 = 2asa= -5.6 * 5.6/16a = -1.96 m/sec2now,coeff. of friction = a/g= 1.96/9.8= 0.2Good Luck
```
11 months ago
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