1.

The position of a body varies with time as x=3t^2-6t+7, then the particle turns around at.​

Answer»

Answer:

Correct option is

A

5 m

The correct option is A.

Given,

X=t

2

−4t+6

So, the CHANGE in velocity is:

dt

dx

=2t−4

Since velocity is changing,

At t=0,x

1

=6

At t=2,x

2

=2

So the magnitude of the DISTANCE TRAVELED is:

6−2=4m

At t=3,x

3

=3

So distance traveled from t=2s to t=3s

x

3

−x

2

=3−2=1m

Thus the total distance is:


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