Mechanical Engineering - Engineering Mechanics - Discussion

Discussion Forum : Engineering Mechanics - Section 3 (Q.No. 1)
1.
If the masses of both the bodies, as shown in the below figure, are doubled, then the acceleration in the string will be
same
half
double
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
11 comments Page 2 of 2.

Mala sinha said:   5 years ago
@Aldrin.

According to the formula when you double up the masses, tension will be doubled but acceleration will be same.
a=(m1-m2)g/(m1+m2).
When we double up the masses.
Then a will be (2m1-2m2).g/(2m1+2m2).
When we will take common 2 then.
2(m1-m2).g/2(m1+m2).
Cancel 2 with 2.
Then the answer will be same.
I think this is the right answer.
(3)


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