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Dynamics ID Free Response File

9 Comments

Daniel Angotti • 1 year, 6 months agologin to reply

Would it be possible to get the worked-out solutions to these problems? Thanks

John Ennis • 1 year, 6 months agologin to reply

Daniel, at this time, we don't make them all available, but will send individual ones as you request. John

Katherine Boutin • 1 year, 1 month agologin to reply

For question 2. When finding the acceleration of block m1 relative to the horizontal surface (m2), I got a1 =(F-mum1g)/m1 which is given in the answer key. For part C, why do we have to subtract the accelerations to find the acceleration relative to block m2? Isn't that what we found in part B? Thank you!

John Ennis • 1 year, 1 month agologin to reply

Katherine, that would be the acceleration relative to the ground. Since the bottom block is also moving to the right, the relative acceleration between the two blocks requires the subtraction. The bottom block is "running away" from the top block, so it takes longer for the top block to slide off the end. John

Sabrina Vargas • 1 year, 1 month agologin to reply

Would I be able to have the worked out solution for problems 3,6, and 7. Thank you.

John Ennis • 1 year, 1 month agologin to reply

Sabrina, Here are problems 3 and 7. I'll get #6 to you tomorrow. John

John Ennis • 1 year, 1 month agologin to reply

Sabrina, Here are problems 3 and 7. I'll get #6 to you tomorrow. John

Katherine Boutin • 1 year, 1 month agologin to reply

Thank you John. I fell into the trap of not reading the question completely.

John Ennis • 1 year, 1 month agologin to reply

We all fall into that trap! John

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