IMPORTANT TRICKS OF KINEMATICS

KINEMATICS TRICKS TO SLOVE THE NUMERICALS

v      Equations of motions

v = u+at    HERE    v = final velocity

u = initial velocity

a= acceleration

s= displacement/ distance

S=ut+1/2at²            

v²=u²+2as

v      When the object is falling downward the Equations of motions having following form

v = u+gt         HERE      v = final velocity

        u = initial velocity

        g= gravitational acceleration

        s= displacement/ distance

S=ut+1/2gt²            

v²=u²+2gs

v      When the object is ascending upward the Equations of motions having following form

v = u-gt         HERE       v = final velocity

        u = initial velocity

        g= gravitational acceleration

        s= displacement/ distance

S=ut-1/2gt²      

v²=u²-2gs

v      When the object is dropped down toward the earth Equations of motions having following form

v = gt           HERE         v = final velocity

        u (initial velocity)=0

        g= gravitational acceleration

        s= displacement/ distance

S= 1/2gt²          

v²= 2gs

v      The formula for maximum height (h) attained by an object when it’s thrown upward 

                        h=u²/2g

          

v      Time taken by the object to attain the maximum height

                        t=u/g

v      Time taken by the object to reach at the initial position from the maximum height

             

            t=u/g