× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
5
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
New Topic  
cloveb cloveb
wrote...
Valued Member
Posts: 782
6 years ago
A car with mass of 1000 kg accelerates from 10 m/s to 40 m/s in 10 s. Ignore air resistance. The engine has 22% efficiency, which means that 22% of the energy released by the burning gasoline is converted into mechanical energy. What is the average mechanical power output of the engine?

(1) 7.5 x 104 W (2) 7.5 x 105 W (3) 8.0 x 104 W (4) 1.65 x 104 W (5) None of these.

PHY2053, Summer 2012 Exam
Read 129 times

Related Topics

New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  1258 People Browsing
Related Images
  
 296
  
 606
  
 141
Your Opinion
Where do you get your textbooks?
Votes: 372