The figure belaw hows a postion versue tme plct fer a particle maving along the

Question

The figure belaw hows a postion versue tme plct fer a particle maving along the horizontal r axis. 4X103 3X10 2x10 1x 103 0 1 2 34 5 6 78 9 10 Time (s) a Find the distance rrered hy the particlravrr the finst5 s of its motian Number Units h Find the dispaement af the partirle during the first5 its mation Number e Find the average sceed and the average velecity of the particle. The average speed is Number Units The average velocty is Number Units Id) Fnd the speed and velccity of the partcle att 3 s. The speed is Number Units

Explanation / Answer

a) distance covered by the particle during first 5 second = the length of the path

= 4000 m

b) displacement of the particle during first 5 second = x2 - x1

= 0 - 4000

= -4000 m

c) average speed = distance travelled/time taken

= 4000/5

= 800 m/s

average velocity = displacement/time taken

= -4000/5

= -800 m/s

d) at t = 3s,

speed = 800 m/s

velocity = -800 m/s

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