Question

Using the addition and subtraction rule for propagation of uncertainties, select the expression for the uncertainty in the net force.

Form: r = x ± y

Rule: Δr = Δx + Δy

Question 1 options:

	A) ΔFnet = ΔF1 - ΔF2
	B) ΔFnet = ΔF1 + ΔF2
	C) ΔFnet = Δx + Δy
	D) ΔFnet = 3

Question 2 (1 point)

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If the results of the force measurements are F₁ = (12.2 ± 0.9) N and F₂ = (19.8 ± 0.3) N, what is the uncertainty in the net force (in N) (don't round)?

Answer 1

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