A ball is allowed to fall from the height of 8 cm if the ball is perfectly elastic how much it rise after rebound
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we have
a=10ms^2 u=0m/s and s= 8m
we know
v^2=u2+2as
v^2=0+10×8×2
v=4root10
now when ball rebounds.
u=4root10m/s v=0m/s
thenv^2=u2+2as
=>0=160-20s
=>s=-160/-20=8m
hence ball also rebounds 8m.
Hope you will understand
a=10ms^2 u=0m/s and s= 8m
we know
v^2=u2+2as
v^2=0+10×8×2
v=4root10
now when ball rebounds.
u=4root10m/s v=0m/s
thenv^2=u2+2as
=>0=160-20s
=>s=-160/-20=8m
hence ball also rebounds 8m.
Hope you will understand
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0
Answer:I hope u will understand it..
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