Question

x=2t²+t+1
find average speed in 2 second.​

Answer 1

Answer:

9

Explanation:

by differentiating

take X as a distance and now differentiate it.then we get speed. then replace t with 2

Answer 2

Answer :-

11m/s

Explanation :-

x= 2t^2+t+1

x (t)=2t^2+t+1

x(2)=2(2)^2+2+1 ( as time is 2 seconds )

x=2×4+3

x=8+3

x=11

x=11m/s is the answer.

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