defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Physics Units, Dimensions and Measurements Dimensional analysis and its applications
The position x of a body depends on the time t according to the equation x = at + bt2. Here x is in metre and t in second. The units of a and b are respectively
1
m-1s-1 ; m-2s-2
2
m-1s ; m-1s-2
3
ms ; ms-2
4
ms-1 ; ms-2