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7. MOTION
medium
There are 5 houses on a street, $A, B, C, D$ and $E$. For all cases, assume that positions to the right are positive.
$(i)$ Draw a frame of reference with house $A$ as the origin and the positions of houses $B, C, D$ and $E$.
$(ii)$ You live in house $C.$ What is your position relative to house $E$ ?
$(iii)$ What are the positions of houses $A$ and $D$, if house $B$ is taken as the reference point ?
Option A
Option B
Option C
Option D
Solution
$(ii)$ My house $(C)$ is $20 m$ farther from the house $E$.
$(iii)$ The distance between houses $A$ and $D$ from the house $B$ are $10 m$ and $20 m$ respectively.
Standard 9
Science
