The-distance-S-metre-travelled-in-time-t-seconds-by-an-object-released-from-rest-and-allow-to-fall-freely-under-the-force-of-gravity-is-given-by-s-t-4-5t-2-find-a-the-average-speed-of-the-object-

Question Number 171005 by Mastermind last updated on 06/Jun/22

T h e d i s t a n c e S m e t r e t r a v e l l e d i n t i m e

t s e c o n d s b y a n o b j e c t r e l e a s e d f r o m

r e s t a n d a l l o w t o f a l l f r e e l y u n d e r t h e

f o r c e o f g r a v i t y i s g i v e n b y s (t) = 4.5 t^{2} .

f i n d

a) t h e a v e r a g e s p e e d o f t h e o b j e c t

d u r i n g t h e t i m e i n t e r v a l f r o m 2 t o

2.5 s e c o n d s .

b) t h e i n s t a n t a n e o u s v e l o c i t y o f t h e

o b j e c t a f t e r 4 s e c o n d s .

M a s t e r m i n d