A car moves 100m due east and then 25m due west.
(a) what is the distance covered?
(b) what is the displacement?
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distance covered 125m
total displacement 75m
total displacement 75m
Answered by
2
Short answer:
a) 100+25 =125m
b) 100-25=75m
Further explanation:
Distance is a scalar quantity, only look for magnitude. While displacement is a vector quantity, it look for magnitude and direction.
When direction is in condition, the car move from a starting point, moving to the east → 100m and move to west 25m which means move to the left 25m.
The car is actually moving backward and so need to deduct 100 by 25.
a) 100+25 =125m
b) 100-25=75m
Further explanation:
Distance is a scalar quantity, only look for magnitude. While displacement is a vector quantity, it look for magnitude and direction.
When direction is in condition, the car move from a starting point, moving to the east → 100m and move to west 25m which means move to the left 25m.
The car is actually moving backward and so need to deduct 100 by 25.
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