a bullet hits a wall with a velocity of 20m/s and penetrates it upto a distance of 5cm. find the deceleration of the bullet in the wall?
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sandy72:
it May be correct
ys its correct
bcoz all the given things taken by u is coorect
Ok thanks
and the things calculated by u is also correct!!
k u bro!
thank u bro!
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ya
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Answered by
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Initial velocity(u)=0
Final velocity (v)=20
Distance=5cm
Decleration. d=-a
v^2=u^2+2aS
20^2=2a5
400=2a5
2a=400/5
2a=80
A =40
-a=-40
Final velocity (v)=20
Distance=5cm
Decleration. d=-a
v^2=u^2+2aS
20^2=2a5
400=2a5
2a=400/5
2a=80
A =40
-a=-40
thank u
i have a question can i ask ?
Yes
why the acceleration is in negative
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