Question

10. An object moves along the x-axis. Its x coordinate is
(c)
given
as a function of time as
x=71t-3t^2
where x is in metre and t is in second. Its average speed
over the interval t = 0 to t=4 s is
(a) 5 m/s
(b)- 5 m/s
c) -169/24
d) 169/24​

Answer 1

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