Question

Aparticle moves along x-axis according to the equation
x = 12 - t. The average velocity of the particle in first
2 sec is
1) 3 m/s
(2) 2 m/s
3) 6 m/s
1 m/s​

Answer 1

Hey mate

Here we have given position of particle in terms of t

X= 12-t

On differentiating the above function we get average velocity

$v _{avg} = \frac{dx}{dt}$

Put the value of x=12-t

So t become 1 and 12 becomes 0

We get v=-1 which is not possible

v= 1 m/s

option 4 is correct

Answer 2

Hey mate

X=12-t

On differentiating the above function we get average velocity

we get v=-1 which is not possible

v=1m/s

option 4 is correct