The document shows equations for calculating force (F), mass (m), and acceleration (a) given values for pressure (P), gravity (g), and time (t). It uses the equations to calculate that for a pressure of 800N, the mass is 81.6kg, and the force is 408.15N. It then sets up another calculation with an initial pressure of 30N, time of 2s, final velocity of 5m/s, and initial velocity of 0m/s to solve for the unknown force.

3. P=800”N” P=m.g F=m.a
a=5m/s m=P/g F=81.63(5)
m=800/9.8=81.6 F=408.15”N”
3

5. F=?
P=30”N”
t=2s
Vf=5m/s
Vo=0
V=0.3