When Old Women Attack - 1

Known:

Mercury Mystique mass = 1273.7 kg
delta X = 1 meter
Vxi = 30 miles/hours
Vxf = 0 miles/hours
t = ?

Conversions:

1 mile = 1 kilometer
1000 meters = 1 kilometer
60 seconds = 1 minute
60 minutes = 1 hour
30 miles/hours = 13.40833 meters/second

Equations:

delta X = (1/2)(Vxf – Vxi)t
delta X = (Vxf)t + (1/2)at^2
F = ma

1) t = ?

delta X = (1/2)(Vxf – Vxi)t
1 meter = (1/2)(13.40833 meters/second)t
t = 0.149 second

2) a = ?

delta X = (Vxf)t + (1/2)at^2
1 meter = (13.40833 meters/second)(0.149seconds) + (1/2)a(0.149seconds)^2
a = -89.89 meters/second^2

3) F = ?

F = ma
F = (1273.7 kg)( -89.89 meters/second^2)
F = 114494.8694 N

Or
F = 25,738.45 lb

That is the force I hit her. She walked away. Imagine the force if I was going 50 miles/hours like she says I was. Confused? Wait for new post.