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Answered by
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v = u+at
u = 0
V = 72km/hr i.e 72×5/18 m/s = 20m/s
a = V/t = 20/5×60 = 1/15 m/sec² i.e 0.066
s = 1/2at²
1/2 ×1/15 × 5×5×60×60
= 3000 m.
hope this helps. :)
u = 0
V = 72km/hr i.e 72×5/18 m/s = 20m/s
a = V/t = 20/5×60 = 1/15 m/sec² i.e 0.066
s = 1/2at²
1/2 ×1/15 × 5×5×60×60
= 3000 m.
hope this helps. :)
Answered by
1
u =0m/s
v = 72 km/h => 72×5/18 => 20 m/s
t = 5 mins = 5×60 => 300 sec
using first equation of motion
v = u+at
20 = 0+a(300)
20/300 = a
1/15 m/s² = a
using second equation of motion
s = ut+1/2at²
s = 0(300) +1/2 ×1/15 × (300)²
s = 0+1/30 × 90000
s = 3000 m or 3 km
hope this helps
v = 72 km/h => 72×5/18 => 20 m/s
t = 5 mins = 5×60 => 300 sec
using first equation of motion
v = u+at
20 = 0+a(300)
20/300 = a
1/15 m/s² = a
using second equation of motion
s = ut+1/2at²
s = 0(300) +1/2 ×1/15 × (300)²
s = 0+1/30 × 90000
s = 3000 m or 3 km
hope this helps
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