Good evening,
Could you please help me with this?

Dear student,

a. average velocity =total displacementtotal time=20-04-0=5m/sb.displacement =average velocity × time(i) displacement in 2.5 sec = 5×2.5=12.5 m(ii)displacement in 4.5 sec =5×4.5=22.5 m
Regards,

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