1 For help with math skills, you may want to review: Solutions of Systems of Equ

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For help with math skills, you may want to review:

Solutions of Systems of Equations

How much force does an 75.0kg astronaut exert on his chair while sitting at rest on the launch pad?Express your answer with the appropriate units. How much force does the astronaut exert on his chair while accelerating straight up at 10.0m/s2 ? Express your answer with the appropriate units. he 100 kg block in figure takes 6.60s to reach the floor after being released from rest. (Figure 1) For help with math skills, you may want to review: Solutions of Systems of Equations What is the mass of the block on the left? Express your answer with the appropriate units.

Explanation / Answer

1. N - mg = 0

N = 75*9.81=736 N

2. N - mg = ma

N = 75*(9.81+10)=1486 N

3. I need more info to solve this

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