Thermochemistry Homework Problem

  • Thread starter shawonna23
  • Start date
  • #1
shawonna23
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Homework Statement


1. What is the kinetic energy in joules of a 950-lb motorcycle moving at 50 mph ?

2. If the speed of the motorcycle changes from 50 mph (with kintic energy K1) to 25 mph (with kinetic energy K2), what is the ratio of K1 to K2?


Homework Equations



1. KE=1/2mv2
The answer I got for this problem was 1.1×10 5 J

The Attempt at a Solution



2.k1/k2= 0.25
 

Answers and Replies

  • #2
Char. Limit
Gold Member
1,216
22
Yeah, those seem about right...
 

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