AP EAMCET202125 Aug 2021Evening ShiftPhysicsMotion in One DimensionActual
Acceleration of a body whose displacement follows the equation 3 s=9 t+5 t^2 is in ms ⁻²
Options
- A5 3
- B14 3
- C10 3
- D19 3
Correct answer
C. 10 3
Step-by-step solution
Given, displacement 3 s=9 t+5 t^2 ...(i) From second equation of motion, we get s=u t+ 1 2 a t^2 ...(ii) Rearranging Eq. (i), we get s=3 t+ 5 3 t^2 ...(iii) By comparing Eq. (ii) and Eq. (iii), we get aligned 1 2 a & = 5 3 a & = 10 3 ~ms ⁻² aligned