Question

if x=t^2-6t+4 then find 1)average speed in 5 second 2) average velocity in 5 second​

Answer 1

1. speed = distance/ time

distance which is x when we put t = 5,

x = -1 or 1 because distance can not be negative

now avg speed = 1/time = 0.2 m/s

2. avg velocity ?

velocity is dx/dt = 2t-6

now put t = 5

therefore AVG VELOCITY = 4 m/s

Answer 2

Answer:

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