- #1

discosucks

- 23

- 3

## Homework Statement

An 850 kg car accelerates uniformly from rest to 33 m/s in a distance of 120 m. What is

the magnitude of the net force acting on the car?

## Homework Equations

F = ma

dynamic equations

## The Attempt at a Solution

**So i think i have this one sorted but just posting to see iv got it right .**

Seeing as i need acceleration to find the force i have to find it using the info i have so

a= ?

s= 120

v = 33

u = 0

t = not needed .

v^2=u^2+2as

(33)^2 = 0 + 2(a)120

1089 = 240a

4.5375 = a

4.5375 m/s^2

F = ma

850 x

Seeing as i need acceleration to find the force i have to find it using the info i have so

a= ?

s= 120

v = 33

u = 0

t = not needed .

v^2=u^2+2as

(33)^2 = 0 + 2(a)120

1089 = 240a

4.5375 = a

4.5375 m/s^2

F = ma

850 x

**4.5375**

3856.875 N

3856.875 N