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Karo-lina-s [1.5K]
3 years ago
15

Inertia is the resistance of an object to a change in its....

Physics
2 answers:
yulyashka [42]3 years ago
7 0

Answer:

D  

Explanation:

if i get it wrong dont hate please

 have a good day

mixas84 [53]3 years ago
4 0
Inertia is the resistance of an object to a change in its B. Motion
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A mass m = 3.9 kg hangs from a massless string wrapped around a uniform cylinder with mass Mp = 10.53 and radius R= 0.96 m. The
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Answer:

the rotational inertia of the cylinder = 4.85 kgm²

the mass moved 7.942 m/s

Explanation:

Formula for calculating Inertia can be expressed as:

I =\frac{1}{2}mR^2

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I = \frac{1}{2}m_pR^2

I = \frac{1}{2}*10.53*(0.96)^2

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I=4.852224

I ≅ 4.85 kgm²

mg - T ma and RT = I ∝

T = \frac{Ia}{R^2}

a = \frac{g}{1+\frac{I}{mR^2}}

a = \frac{9.8}{1+\frac{4.85}{3.9*(0.96)^2}}

a = 4.1713 m/s²

Using the equation of motion

v^2 = u^2+2as \\ \\ v^2 = 2as \\ \\ v = \sqrt{2*a*s} \\ \\ v= \sqrt{2*4.1713*7.56} \\ \\ v = 7.942 \ m/s

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