Three chairs were rolling across a flat office floor. The blue and red chairs are the same mass, and they have more mass than th
e yellow chair. Each chair was hit by another chair, but not from the same direction. Use the information in the diagram to answer.
Which chair(s) experienced the strongest force when hit? How do you know?
a
The blue and red chairs experienced the strongest force because they are both more massive than the yellow chair and they changed speed by the same amount.
b
The red chair experienced the strongest force because it is as massive as the blue chair and has the highest ending speed.
c
All three chairs experienced the same force because they changed speed by the same amount.
d
The blue chair experienced the strongest force because it takes more force to slow an object than it takes to make it go faster.
Which chair(s) experienced the strongest force when hit? How do you know?
a
The blue and red chairs experienced the strongest force because they are both more massive than the yellow chair and they changed speed by the same amount.
b
The red chair experienced the strongest force because it is as massive as the blue chair and has the highest ending speed.
c
All three chairs experienced the same force because they changed speed by the same amount.
d
The blue chair experienced the strongest force because it takes more force to slow an object than it takes to make it go faster.
2 answers:
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Answer: 1.95
Explanation:
You should start off from the decay formula and solve for τ:
Apply inverse logarithmic function:
The final form will be:
Inputing values for I, IO, and t: