**1. The problem statement, all variables and given/known data**

Two masses are attached by a light string and looped over two frictionless pulleys. Object 1 (200g) accelerates upwards at a rate of 4.90 m/s squared. Determine mass of object 2.

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**2. Relevant equations**

**3. The attempt at a solution**

I tries doing this but don’t think its right.

Fnet= F1 + F2

ma= m1 + m2

-m2g = m1g – ma

m2g=ma-m1g

m2g= m(a-g)

m2g/g=m(a-g)/g

m2=m(a)

m2=(.2kg)(4.90m/s 2)

m2=.98 kg or 980 grams

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