# What does fraction of G mean? (SI units)

1. Aug 27, 2006

### Kalie

I have search my gigantic physics book everywhere for this but I can't seem to find it...does anyone know what it means

Seee the problem is
What constant acceleration, in SI units, must a car have to go from zero to 71.0 mph in 13.0 s? I solved that it was 2.44 m/s^2
but then it askes What fraction of g is this?
I have know clue what that means except it is post to be a percent....

2. Aug 28, 2006

### Integral

Staff Emeritus
g is acceleration due to gravity, 9.81 $\frac m s$

3. Aug 28, 2006

### Kalie

Thank you so much

4. Aug 28, 2006

### Staff: Mentor

$$\frac{m}{s^2}$$

5. Jan 14, 2009

### hellokitty

Can someone explain HOW to solve it?
I understand that g=gravity=9.81. So what now? How do it solve the fraction?
I know it is not 9.81/acceleration or acceleration/9.81....

6. Jan 14, 2009

### jgens

Well since g * fraction = a, what does that tell you about your fraction?