MP Board · Class 9 · Science · MotionWrite the second equation of motion and explain each symbol used.

The second equation of motion provides the distance or displacement covered by an object moving with uniform acceleration over a specific period of time. The equation is expressed as: $$s = ut + \frac{1}{2}at^2$$\nHere, the symbols represent:

• $s$ = distance covered by the object (in meters, $\text{m}$)
• $u$ = initial velocity of the object (in $\text{m/s}$)
• $a$ = constant acceleration of the object (in $\text{m/s}^2$)
• $t$ = time duration during which the body travels (in seconds, $\text{s}$)\nThis formula is extremely useful when the final velocity $v$ is not known.