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Answer :
Answer:
8.42s
Explanation:
The time (in seconds) needed to move the car can be calculated using the formula:
S = ut + 1/2at²
Where; S = distance (m) = 5m
u = initial velocity (m/s)
a = acceleration (m/s²)
t = time (s)
However, the acceleration (a) can be got by using F = ma
Where; F = force = 187 N
m = mass = 1330 kg
F = ma
a = F/m
a = 187/1330
a = 0.1406
a = 0.141m/s²
Since a= 0.141m/s², S = 5m, t =
S = ut + 1/2at²
5 = (0 × t) + 1/2 × (0.141 × t²)
5 = 0 + 0.141t²/2
5 = 0.141t²/2
10 = 0.141t²
t² = 10/0.141
t² = 70.922
t = √70.922
t = 8.42s
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