(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

What force is needed to make a 1200kg vehicle accelerate from rest to 108km/hr in 100m

2. Relevant equations

aceleration = Velocity/time

Force = Mass x Acceleration

Time = Distance/Velocity

3. The attempt at a solution

M = 1200kg

D = 100m

V = 108 km/hr / 3.6 = 30 m/s

t = 100m/30 m/s = 3.33sec

a = 30 m/s / 3.33sec = 9 m/s

F = 1200 x 9 m/s = 10800kg

Now do I need to convert the kg to Newtons? by multiplying by gravity 9.8m/s I am a bit confused about that?

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: What force is needed to accelerate a car

**Physics Forums | Science Articles, Homework Help, Discussion**