A powerful motorcycle can accelerate from rest to 24.8 m/s (55 mi/h) in only 5.9

label Physics
account_circle Unassigned
schedule 1 Day
account_balance_wallet $5

A powerful motorcycle can accelerate from rest to 24.8 m/s (55 mi/h) in only 5.90 s.
(a) What is its (constant) acceleration?
 m/s2
(b) How far does it travel in that time?
 m
Sep 8th, 2015

Thank you for the opportunity to help you with your question!

a)accleration = Vf-Vi/t

Vi=0

Vf=24.8 m/s

t=5s

a=24.8/5 =4.96 m/s^2


b) d=1/2at^2 

      =1/2 *4.96 *5*5

      =62 m.

Please let me know if you need any clarification. I'm always happy to answer your questions.
Sep 8th, 2015

The answer was wrong

Sep 8th, 2015

which one a or b


Sep 8th, 2015

sorry, u are question too fast to answer let me check.

Sep 8th, 2015

a)accleration = Vf-Vi/t

Vi=0

Vf=24.8 m/s

t=5.90s

a=24.8/5.90=4.20 m/s^2

b) d=1/2at^2 

      =1/2 *4.20 *5*5

      = 52.5 m


Sep 8th, 2015

now check

Sep 8th, 2015

The was still wrong

Sep 8th, 2015

which one is wrong a or b

Sep 8th, 2015

b) d=1/2at^2

      =1/2 *4.20 *5.9*5.9

      =73.10 m



this should be right....................................................................................................

Sep 8th, 2015

is it right????

Sep 8th, 2015

YES,thanks  for your help

Sep 8th, 2015

ask me directly physics questions i can answer them all.

thanks.

Sep 8th, 2015

Studypool's Notebank makes it easy to buy and sell old notes, study guides, reviews, etc.
Click to visit
The Notebank
...
Sep 8th, 2015
...
Sep 8th, 2015
Sep 23rd, 2017
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer