What is the action force and the reaction force when you sit down on a chair
2 answers:
Your weight pushing down on the chair is the action force. The reaction force is the force exerted by the chair that pushes up on your body.
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Your weight pushing down on the chair is the action force. The reaction force is the force exerted by the chair that pushes up on your body.
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Data:
h = 2m
m = 45 Kg
PE = ? (Joule)
Adopting, gravity (g) ≈ <span>9,8 m/s²
</span>
Formula:

Solving:



Answer:
<span>
The sled's potential energy is 882 Joules</span>
Question 18: a
question 19: b
question 20: c
Answer:
120 N
Explanation:
F=ma therefore 60kg times 2m/s^2 is 120 N
Explanation:
I think its a option pascal's principal