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2) acceleration = 16-6=10m/s^2
velocity= accel. × time
= 10×10
=100m/s
distance= v×t
=100×10
= 1000m=1km
3) circumference= 2πr
3140=2πr
r=3140/2×3.14
r=500m
diameter =2×r
=1000m
distance covered by scooterist = circumference/2
= 3140/2
= 1570m
displacement= diameter of circle
= 1000m or 1km
4) displacement=v×t
=5×10
=50m
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