Answer:
Explanation:
mass, m = 500 kg
initial velocity, u = 36 km/h = 10 m/s
final velocity, v = 0
distance, s = 40 m
[tex]v^{2} = u^{2} + 2as[/tex]
[tex]0^{2} = 10 ^{2} +[/tex] 2 × a × 40
0 = 100 + 80 a
- 80a = 100 - 0
-80a = 100
a = -100 / 80
a = -1.25 m/[tex]s^{2}[/tex]
force, f = ?
mass = 500 kg
acceleration = -1.25 m/s^2
f = ma
= 500 × -1.25
= -625 N
Hope this helps
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