- #1

mottov2

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## Homework Statement

[PLAIN]http://img703.imageshack.us/img703/3580/12p71.jpg [Broken]

m1 = 1,378 g. It is free to move along a horizontal, frictionless surface. This block is connected to a second block with mass of m2 = 872 g by a massless string that extends around a massless, frictionless pulley. Find the tension of the string.

## Homework Equations

F net = ma since the system is not at equilibrium.

## The Attempt at a Solution

So for m1,

Tension (T) = 1.378 kg*a.

for m2,

mg-T = m2*a

T = 8.55 N - 0.827 kg*a

since tension is equal at any point along the string, i equated both equations and isolate acceleration;

1.378 kg*a = 8.55 N - 0.872 kg*a

a = 3.8 m/s^2.

therefore T = 1.378 kg * 3.8 m/s^2 = 5.24 N.

did i approach this question properly?

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