Question: Example 4: A driver on a mountain highway with a 7% downslope notices a traffic sign 850ft ahead in the roadway. The driver strikes

Example 4: A driver on a mountain highway with a 7% downslope  

Example 4: A driver on a mountain highway with a 7% downslope notices a traffic sign 850ft ahead in the roadway. The driver strikes the sign at a specd of 30mph. If the driver insists that the 60mph speed limit was not exceeded, what would be the associated reaction time for this driver? Assume the deceleration rate a is 3.4 m/s?[11.2 ft/s2]. Given: u,=60 mph; uz=30 mph; a=11.2; g=32.2; G= - 7%; S=850ft Find: t, Solution: S =

Step by Step Solution

3.57 Rating (154 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock

Given initial speed u60mph88fts Final speed v 30 mph44fts Total Distance traveled850 ft ... View full answer

blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!