Wednesday

August 20, 2014

August 20, 2014

Posted by **Karrine** on Thursday, October 18, 2012 at 12:48pm.

a)speed of the race car (m/s)

b)the distance traveled (m)

c)elapsed time (s)

The answer that is on the other questions asked is wrong...please help!

- Physics -
**Elena**, Thursday, October 18, 2012 at 1:45pma(τ)=0.52 m/s², R=500 m

v=? s=? t=?

------

v=a(τ) •t

centripetal (normal) acceleration is

a(n)=v²/R =( a(τ) •t)²/R = a(τ),

a(τ) ² •t²/R = a(τ),

t=sqrt{R/a(τ)}=sqrt{500/0.52)= 31 s,

s=a(τ) •t²/2 = 0.52•31²/2 =249.9 m,

v= a(τ) •t =0.52•31 = 16.12 m/s.

**Related Questions**

Math - A race car starts from rest on a circular track of radius 565 m. The car'...

Physics - A race car starts from rest on a circular track of radius 445 m. The ...

physics - A toy race car starts from rest on a circular track of radius 4.30 m. ...

physics - A toy race car starts from rest on a circular track of radius 4.30 m. ...

Physics HELP! - A toy race car starts from rest on a circular track of radius 4....

Physics- PLEASE HELP - A toy race car starts from rest on a circular track of ...

Physics - A race car starts from rest on a circular track of radius 507 m. The ...

physics - A race car starts from rest on a circular track of radius 265 m. The ...

physics - A race car starts from rest on a circular track. The car increases its...

PHYSICS - super easy (I think) but I must be missing some concept... A race car ...