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How long does it take an object in motion to stop What is a formula to help determine when an object in motion will stop and what variables need to be known?
Wiki User
∙ 12y ago
(first calculate deceleration rate:)
if you know the braking force and mass, you can calculate deceleration.
d=f/m ((m/s)/s)
say mass = 100 kg, force = 1000 n, then d = -10 (m/s)/s (negative because you're slowing down)
(now calculate distance and time during deceleration:)
say initial velocity (u) = 100 m/s
say final velocity (v) = 0 m/s
deceleration (d) = -10 (m/s)/s
time taken to stop under braking (t) = v-u/d = 0 -100/-10 = 10 seconds
distance taken to stop under braking (s) = (u*t )+( a*t^2)/2 = 1500 metres
Wiki User
∙ 12y ago
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