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It is gonna be C 0.37 and 19.1
Answer:
(177.94 ± 3.81) cm^2
Explanation:
l + Δl = 21.7 ± 0.2 cm
b + Δb = 8.2 ± 0.1 cm
Area, A = l x b = 21.7 x 8.2 = 177.94 cm^2
Now use error propagation



So, the area with the error limits is written as
A + ΔA = (177.94 ± 3.81) cm^2
Answer:
F = m × a = 50 kg × 0.8 m/s2 = 40 kg • m/s2, or 40 N
Explanation: