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CBSE Class 9 Answered

Derive all the equations of motion.
Asked by Ayushi Joshi | 28 May, 2013, 04:17: PM
answered-by-expert Expert Answer

First equation of motion:

Consider a body having initial velocity u,If it is subjected to an acceleration 'a' so that after time 't' its velocity becomes v.

By the definition of acceleration

acceleration=Change in velocity/time taken

a=(v-u)/t

v=u+at

Second equation of motion:

Suppose the distance travelled by the above body in time t=s

we have average velocity=(Initial velocity+Final velocity)/2

Third equation of motion:

Answered by | 30 May, 2013, 04:57: PM

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