Forces

Question 1

Gravitational Force

Answer 1

F = mg

Question 2

Spring Force

Answer 2

F = -kx

Question 3

Newton’s Laws

Answer 3

1) Inertia, 2) F = ma = dp/dt, 3) Action-Reaction pairs

Question 4

Centripetal Force

Answer 4

F = m(v^2)/r

Question 5

Static Friction

Answer 5

F ≤ F_N x μ_s

Question 6

Normal Force

Answer 6

F_N, force in reaction to the contact between two surfaces

Question 7

Kinetic Friction

Answer 7

F = F_N x μ_k

Question 8

Coriolis Force

Answer 8

F = - 2 m (w x v) where x is the cross product,
F = - 2mwv sin(theta), where theta is the latitudinal angle

Question 9

Buoyant Force

Answer 9

F_B = pVg, p = density of the fluid, V = volume of fluid displaced, g = grav. acceleration