# Newton's laws: Speed limit on highway curve

On a highway curve with radium 50m, the maximum centripedal force that can act on a 1,000kg car going around the curve is 8,000 Newtons. What speed limit should be posted for the curve so that cars can negotiate it safely?

Â© BrainMass Inc. brainmass.com March 4, 2021, 5:43 pm ad1c9bdddfhttps://brainmass.com/physics/newtons-second-law/newton-s-laws-speed-limit-on-highway-curve-7805

#### Solution Preview

Because,

F = mv^2/r

m = 1000 kg

v = ?

r = 50 meter

F = 8000 ...

#### Solution Summary

The solution explains the calculations to arrive at the answer.

$2.19