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can someone help calculate the velocity on this question please.?
an object begins at rest but then travels:
50m north in 40 seconds,
70m west in 60 seconds
30m south in 70 seconds
40m east in 20 seconds.
Overall time = 40+60+70+20 = 190s
final position of object is calculated to be 36 m away from original point since:
70-40 =30
50-30= 20
a^2+b^2 = c^2
30^2+20^2= c^2
Sqroot30^2+20^2 = C
C=36
Displacement = 36
Therefore V = 36/190
Is this the correct calculation? How do I say whether the velocity is positive or negative? if I have anything incorrect please let me know. Thank you.
1 Answer
- 5 years ago
the calculations are correct but its the average velocity. not just velocity.