HW 1B #27


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Doris Cho 1D
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Joined: Thu Jul 11, 2019 12:16 am

HW 1B #27

Postby Doris Cho 1D » Sat Oct 19, 2019 3:20 pm

so the speed is + or - 5 m/s so how do you know to multiply the mass (8.00 kg) by 10 instead of just 5 m/s?

Catherine Daye 1L
Posts: 104
Joined: Wed Sep 11, 2019 12:16 am

Re: HW 1B #27

Postby Catherine Daye 1L » Sat Oct 19, 2019 3:53 pm

The question is saying the bowling ball is moving at 5+5 m/s (10 m/s) or 5-5 m/s (0 m/s). That's why you multiply the mass by 10 m/s.

Emil Velasco 1H
Posts: 96
Joined: Wed Nov 21, 2018 12:19 am

Re: HW 1B #27

Postby Emil Velasco 1H » Sat Oct 19, 2019 6:26 pm

I used 5.00 value for delta v

Edit: Do not use 5.00 value for delta V:

Lavelle addressed this in his solution manual so we use 10 as delta v
https://lavelle.chem.ucla.edu/wp-conten ... rs_7Ed.pdf


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