Question

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Answer 1

Answer:

a) Distance = 7*3.14 = 22 m

Displacement = 14 m towards South

b) Distance = 7*3.14/2 = 11 m

Displacement = 7*sqrt(2) = 9.87 m towards South East direction

c) Distance = 7*3.14*3/2 = 33 m

Displacement = 7*sqrt(2) = 9.87 m towards South West direction

d) Distance = 7*3.14*4 = 88 m

Displacement = 0. zero

Answer 2

Answer:

OA=OB=OC=OD= RADIUS=7cm( take center as 0)

2πr= perimeter= 2×22/7×7= 44cm

A,B,C,D point divide the circle into four equal parts

44/4= 11cm

AB=BC=CD=DA=11cm

a) a to c along path ABC

distance= AB+BC= 11+11= 22cm

displacement= OA+OC= 7+7= 14cm

b)a to b

distance= AO+OB= 7+7=14cm

displacement= AB=11cm

c) a to d along the path ABCD

distance= AB+BC+CD= 11+11+11=33cm

displacement= AD= 11cm

d)c to c two revolution

distance = AB+BC+CD+DA+AB+BC+CD+DA

= 11+11+11+11+11+11+11+11= 88cm

displacement = 0cm, because c to c