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

1. The first problem states that an elevator moves downwards with an acceleration of 3.36 m/s^2 with someone inside that has the mass of 64.2 kg. Now what is the apparent weight?

2. Blocks A and B are right next to each other. If 5.1 N were applied on block A, calculate the force block A applies onto block B assuming they stay next to each other the whole time. Block A is 3.1 kg and Block B is 5.3 kg. There is no friction involved.

A B

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3. Bob pushes a barrel that is 6.8kg 8.5m. He exerts 50N of force and the final velocity is 15 m/s, what is the initial force? No friction involved.

**2. Relevant equations**

1. m(g-a), not sure?

2. No idea

3. (F/m)- g = a plug a into another equation?

**3. The attempt at a solution**

1. 414.09 kg, not sure if right

2. No idea

3. Vi= 16.33 m/s, not sure if right