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Explanation:
a.acceleration=(final velocity-initial velocity)/time
=(20-0)/40 m/s² =0.5m/s²
b.Acceleration is uniform because the car is accelerating at the same rate throughout the situation.i.e. 0.5m/s².
c.iv. zero. because velocity is constant.
d.iv.velocity is constant because the velocity is not increasing nor decrasing with time and is constant.
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