Question

3kg
147 System is shown in figure. (AS, ) Assume there is no friction
Find the acceleration of the blocks and tension in the string.
Take g=10m/s . (Ans: 5m/s2, 15N)
20
5 21​

Answer 1

Explanation:

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Asked on December 26, 2019 by

Sesha Raikwar

If α=−5 and β=9 then form the quadratic equation.

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ANSWER

⇒ let α and β are roots.

⇒ α=−5,β=9

⇒ Sum of the roots =α+β=−5+9=4

⇒ Product of the roots =α.β=−5×9=−45

⇒ x

2

−(α+β)x+(α.β)=0

⇒ x

2

−(4)x+(−45)=0

∴ x

2

−4x−45=0

∴ Required quadratic equation is x

2

−4x−45=0

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