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secondary 3 | A Maths
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helpp asap !! under topic of kinematics (speed)
Date Posted: 5 years ago
Views: 251
walk
d = 4 km
v = 5.0 km/h
t = 4/5 h = 0.8 h
run
t = 15 min = 0.25 h
v = 10 km/h
d = 10 x 0.25 = 2.5 km
whole journey
d = 2.5 + 4 = 6.5 km
t = 0.8 + 0.25 = 1.05 h
v = 6.5/1.05 = 6.19 km/h
avg speed = 6.19 km/h
...
d = 4 km
v = 5.0 km/h
t = 4/5 h = 0.8 h
run
t = 15 min = 0.25 h
v = 10 km/h
d = 10 x 0.25 = 2.5 km
whole journey
d = 2.5 + 4 = 6.5 km
t = 0.8 + 0.25 = 1.05 h
v = 6.5/1.05 = 6.19 km/h
avg speed = 6.19 km/h
...
Let me know if there’s anything else I can help with
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done
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Here you go, have a great night!
Date Posted:
5 years ago
thank you !! this was incredibly helpful
Always glad to help! :)
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