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andreev551 [17]
1 year ago
13

chanice drives her scooter 7 kilometres north. she stops for lunch and then drives 5 kilometres east. what distance did she cove

r? what was her displacement?/8
Physics
1 answer:
steposvetlana [31]1 year ago
7 0

By using vector

a. the distance traveled is 12 kilometres

b. the resultant displacement is (7 i + 5 j) kilometres

We need to know about vectors to solve this problem. Vector has magnitude and also direction. Displacement is included in vector. It can be written as

s = sx i + sy j + sz k

where s is displacement, sx is displacement on x-axis, sy is displacement on y-axis and sz us displacement on z-axis.

From the question above, we know that

east = positive x

south = negative y

west = negative x

north = positive y

s1 = 7 j

s2 = 5 j

The distance traveled is

s = s1 + s2

s = 7 + 5

s = 12 kilometres

The resultant displacement is

s = s1 + s2

s = 7 i + 5 j

s = (7 i + 5 j) kilometres

Find more on vector at: brainly.com/question/25811261

#SPJ4

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