Nsogbu na azịza 3 gbasara nha nhata ọsọ
1. Ụgbọala ga-aga ndịda maka mita 100 n'ime otu nkeji wee tụgharịa gaa n'ọwụwa anyanwụ mita 120 n'ime nkeji 0.5. Chọpụta ọsọ nkezi nke ụgbọala ahụ.
Mara:
Ogologo ya niile = mita 100 + mita 120 = mita 220
Oge niile = nkeji 1 + nkeji 0.5 = nkeji 1.5 = sekọnd 90
Chọrọ: Nkezi ọsọ
ngwọta:
Speed formula
Average speed = total distance : total time = 220 meters : 90 seconds = 2.4 meters/second
2. A boat traveling in a straight line for a distance of 100 meters after 10 seconds. What is the average speed of the boat?
Mara:
Distance = 100 meters
Time = 10 seconds
chọrọ: Nkezi ọsọ
ngwọta:
Speed formula
Average speed = 100 meters : 10 seconds = 10 meters/second
3. A particle moves from point O to point B in 4 s and from B to A in 20 s. Determine the average speed of the particles.
Mara:
Distance of OB = 5 meters
Distance of BA = 8 meters
Time of OB = 4 seconds
Time of BA = 20 seconds
Chọrọ: The average speed of the particles
ngwọta:
Speed formula
The average speed of the particles = total distance : total time = (5 + 8) : (4 + 20) = 13 : 24 = 0.54 meter/second
