A car travelling at 80 km/hr slows down to 60 km/hr in 5 sec. find its acceleration. (just write the answer no need for a detailed solution)
anandtiwari0019:
by solving only answer can come
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v = 80km/h = 80×5/18= 400/18= 22.22m/s
u = 60km/h= 60×5/18=300/18=16.66m/s
t= 5s
v= u+at
22.22= 16.66+ a×5
22.22-16.66=a×5
5.56=a×5
5.56/5=a
1.11m/s =a
u = 60km/h= 60×5/18=300/18=16.66m/s
t= 5s
v= u+at
22.22= 16.66+ a×5
22.22-16.66=a×5
5.56=a×5
5.56/5=a
1.11m/s =a
so why to complicate the answer
3600 ?
it is wrong
the velocity must be 222
to convert km/h we apply 1000/3600and by dividing them we get5/18
no
mine sign is wrong but your whole is incorrct
t its wrong
no
whoever asked this question its right just one mistake put 16.66 -22.22=-5.56 it will be correct then as the answer will be -1.11
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