Equal-forces-act-on-two-bodies-which-are-initially-at-rest-for-equal-times-If-the-ratio-of-the-masses-is-4-3-What-is-the-ratio-of-the-distance-covered-

Question Number 22855 by NECx last updated on 23/Oct/17

E q u a l f o r c e s a c t o n t w o b o d i e s

w h i c h a r e i n i t i a l l y a t r e s t, f o r

e q u a l t i m e s . I f t h e r a t i o o f t h e

m a s s e s i s 4 : 3, W h a t i s t h e r a t i o

o f t h e d i s t a n c e c o v e r e d ?

Commented by NECx last updated on 23/Oct/17

p l e a s e h e l p

Answered by Physics lover last updated on 23/Oct/17

l e t t h e t w o m a s s e s b e 4 m & 3 m

f o r c e b e f

a_{4 m} = \frac{f}{4 m}; a_{3 m} = \frac{f}{3 m}

u s i n g s e c o n d e q u a t i o n o f m o t i o n

S_{4 m} = (0) t + \frac{1}{2} (\frac{f}{4 m}) t^{2}

S_{3 m} = (0) t + \frac{1}{2} (\frac{f}{3 m}) t^{2}

\Rightarrow \frac{S_{4 m}}{S_{3 m}} = \frac{3}{4}

Commented by NECx last updated on 23/Oct/17

w o w \dots . T h a t s c o o l b u d d y

Commented by NECx last updated on 23/Oct/17

n i c e o n e s i r \dots i t s s h o r t a n d

e x p l a n a t o r y

Commented by Physics lover last updated on 23/Oct/17

t h a n k s a n d y e a h, y o u c a n c a l l m e

b u d d y / f r i e n d .

Commented by Physics lover last updated on 23/Oct/17

A c t u a l l y i h a v e p i v k e d u p w r i t t i n g

l i k e t h i s f r o m m y p h y s i c s t e a c h e r .

H e w o u l d w r i t e s o o o p e r f e c t l y

t h a t i t s o m e t i m e s l o o k f u n n y

a n d r i d i c u l o u s . B u t i a d m i r e d t h a t

. E v e n i f h e w o u l d p u t a n e x t r a

“ {d o t}^{″} h e w o u l d i m m e d i a t e l y

n o t i c e a n d r e c t i f y t h a t . p

H e s a y s t h a t h e u s e d t o m a k e

p o r t r a i t s . A n d h i s d r a w i n g i s

l i k e t h a t o f a n a r c h i t e c t . l o l