Linear Kinetics Equations

Question 1

Force

Answer 1

• Push or pull
• The product of mass and acceleration
• F = ma

Question 2

Weight

Answer 2

• Gravitational force that the earth exerts on a body
• wt = ma(g)
• a(g) = -9.81 m/s^2

Question 3

Pound-Newton Conversion Factor

Answer 3

1 lb = 4.45 N

Question 4

Pressure

Answer 4

• Force per unit of area over which force acts
• P = F/A
• Units in the metric system are N/cm^2 and Pascals (Pa) and in the English system is psi

Question 5

Volume

Answer 5

• The amount of 3-dimensional space occupied by a body (V)

- V = lwh

Question 6

Density

Answer 6

• Mass per unit of volume

- ρ = m / V

Question 7

Impulse

Answer 7

• Product of force and the time over which the force acts
• J = Ft
• Unit = Ns