Question

The x coordinate of a particle moving along x axis is given in terms of time as x = (2-t) (t-6) metre. Find the displacement of the particle (in metre) from time t = 1 to t = 4 second.

• A. 9
• B. 7
• C. 4
• D. 5

Answer 1

The correct option is A

9

Substituting the value, t=1 second in the equation, x = (2-t) (t-6) metre, we get, x= - 5 m

Substituting the value, t=4 second in the equation, x = (2-t) (t-6) metre, we get, x= 4 m

Displacement = final position - initial position =4 - ( - 5) = 9 m