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ICSE Class 9 Answered

numerical= 1]a partical initially at rest ,moves with an acceleration 5m/s^2 for 5 secs .find the distance travelled in a)4 secs b)5 secs c)5th second  
Asked by vaishalibhosalelic13 | 24 Jul, 2020, 10:27: PM
answered-by-expert Expert Answer
i n space t equals 4 s e c o n d s S equals u t plus 1 half a t squared I f space t h e space b o d y space s t a r t s space f r o m space r e s t space t h e n S equals 0 plus 1 half 5 cross times open parentheses 4 close parentheses squared S equals 40 m i n space t equals 5 s e c o n d s S equals u t plus 1 half a t squared I f space t h e space b o d y space s t a r t s space f r o m space r e s t space t h e n S equals 0 plus 1 half 5 cross times open parentheses 5 close parentheses squared S equals 62.5 m D i s tan c e space t r a v e l l e d space b y space t h e space b o d y space i n space 5 t h space s e c o n d space i s space S subscript 5 s e c end subscript minus S subscript 4 s e c end subscript equals 62.5 minus 40 equals 22.5 m
Answered by Utkarsh Lokhande | 25 Jul, 2020, 01:34: PM

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