solve it question no 19
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a=10
s=180
v=?
u=0
v^2–u^2=2as
v^2=2*10*180
v=root 3600=60m/s
speed=s/t
therefore,,t=s/v=180/60=3sec
s=ut + half at^2
=0+0.5*10*2*2=20m
distance covered in last sec=distance covered in 3 sec–distance covered in 2 sec
s=180–20=160m
s=180
v=?
u=0
v^2–u^2=2as
v^2=2*10*180
v=root 3600=60m/s
speed=s/t
therefore,,t=s/v=180/60=3sec
s=ut + half at^2
=0+0.5*10*2*2=20m
distance covered in last sec=distance covered in 3 sec–distance covered in 2 sec
s=180–20=160m
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