Question

A force of 5 N gives a mass m1 an acceleation of 10m/s anda mass m2 an acceleration of 20m/s .what accelaeration would it give if both the masses were tied together?​

Answer 1

Answer:

Explanation:

when a force of 5N gives an acceleration of 10ms-² to a body 

then its mass = 5/10 kg = 0.5kg

so, m₁ = 0.5kg

when a force of 5N gives an acceleration of 20ms⁻² to a body 

then its mass = 5/20 kg = 0.25kg

so, m₂ =  0.25kg

when the two bodies r tied total mass of the system bcomes = 0.75kg

so acceleration of the system will b = force/mass = 5/0.75 = 6.67 ms⁻²

Answer 2

Answer:

6.67 m/s²

Explanation:

Using Newton's second law,

F = m a

5 = M1 × 10

M1 = 5/10 = 0.5 kg

And

5 = M2 × 20

M2 = 5/20 = 0.25 kg

Total mass = 0.5 + 0.25 = 0.75 kg

Now as per question,

Let common acceleration is a,

F = (M1 +M2) ×a

5 = 0.75 × a

a = 5/0.75 =500/75 = 6.67 m/s²

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