Question

please answer physics class 9th​

Answer 1

Answer:

given that,

u=72km/h

v=0km/h

s=10m=0.010km

2as=v^2-u^2

2×a×10 = 0^2-72^2

20a=-72×72

a=-72×72/20

a=-259.2

if u=144km/h

2as=v^2-u^2

2×-259.2×s=0^2-144^2

s=144×144/2×259.2

s=40m

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