Answers

2014-05-22T22:25:53+05:30
U=0
v=72 km/h=20m/s       (to convert into m/s multiply 72 by 5/18)
(i)v=u+at
  a=v-u/t
    =20-0/300=20/300=1/5
(ii)s=ut+1/2at²
     =0*300+1/2*1/15*300*300=3000m=3km

hope this helps :)

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  • Brainly User
2014-05-23T11:32:44+05:30
U=0
v=72km/h=20m/s
t=5min=300s
a=?
v=u+at
20=0+300a
20/300=a
1/15=a
a=0.06m/s

s=ut+1/2at²
s=0*300+1/2*1/15*300*300
s=3000m
s=3km
 hope it helped u


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