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secondary 4 | E Maths
3 Answers Below
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Pls help to solve , thk
Date Posted: 1 year ago
Views: 257
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a) Gradient = -5/3 = -1.67 which represents bus slowing down at a constant rate from 12m/s to 0m/s in 30 second
b) Area of graph = 1/2(3 + 10)(5) = 32.5 unit
1 unit represents 2.4m/s in 10s = 24m
32.5 unit = 32.5 x 24 = 780m
c) 780m = 0.78km
100s = 1.6667min = 0.02778h
Speed = 0.78km/0.02778h = 28.08km/h
Do let me know if the answer is different.
b) Area of graph = 1/2(3 + 10)(5) = 32.5 unit
1 unit represents 2.4m/s in 10s = 24m
32.5 unit = 32.5 x 24 = 780m
c) 780m = 0.78km
100s = 1.6667min = 0.02778h
Speed = 0.78km/0.02778h = 28.08km/h
Do let me know if the answer is different.
Thank
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