Solution) u = 0
a = 5 m/s^2
t = 10 s
V = u + at = 0 + 5×10 = 50 m/s
V = 50 m/s
Vavg = ?
Vavg = (V1 + V2)/2
V1 = a(t1)
t1 = 4 s
V1 = 5×4 = 20 m/s
After 10 seconds it's velocity is constant
V2 = V = 50 m/s
Vavg = (V1 + V2)/(2)
Vavg = (20 + 50)/(2)
Vavg = 35 m/s
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