Ruchi.
a bullet going with speed 350m/s enters a concrete wall and penerate a distance of 0.5cm before coming to rest.find decelaration.
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Dalvoron
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You have initial velocity, final velocity, and displacement. Therefore, you could use:
\[a=\frac{v_1-v_0}{t}\]and\[s=v_0t+\frac{1}{2}at^2\], which should allow you to find t, which would further allow you to find a!
Aadarsh
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\[v ^{2} - u ^{2}= 2 a s\]
Aadarsh
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- 350 * 350 = 2 * 1/ 200 * a
Or, a = - 350 * 350 * 100
Aadarsh
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@Taufique bhai, please help.
Taufique
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|dw:1338450546287:dw|
Taufique
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@Aadrsh, kaise ho bhai aap...
Aadarsh
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Thik huun bhai. To mera answer sahi hai na bhaiyaji...............??????????
Taufique
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han apka answer sahi hai apne positive sign lekr bnaya hai isliye apka answer negative aya pr mai retardation lekr hi formula me negative sign laga diya hun isliye answer positive me arha hai ok..
Aadarsh
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okkkkkkkkkkk
Taufique
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aadarsh ruchi kaun se class me hai...
Aadarsh
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ji bhaiya, ruchi di 11th mein hain.
Ruchi.
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or aadarsh bhai bhi 11th me hai
Aadarsh
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yani ruchi di ke saath same class mein hi!!!!!!!!!:))))))))
Aadarsh
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mujhe "budha" mat banaiye ruchi di i have just bnow entred class 11.
Aadarsh
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Congrats ruchiii diiiii
Taufique
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hehe....
Aadarsh
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Heheheheh
Taufique
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mera bhai v is bar eleventh me gya hai....
Aadarsh
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Jii haan. 2 saal ke baad ...........................................IIT(hope so.............)
Taufique
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apka Aadarsh bhai kvpy ka taiyari kaisa chal rha hai han...
Aadarsh
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Thik Thank bhai,........... abhi ncert ki portion start kiya huun. 2 - 3 mahine mein tayari puri ho jayegi........
Ruchi.
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tnx 4 hlp @taufique