Question

In: Math

After an accident, how do police determine the speed of which the car had been traveling?

After an accident, how do police determine the speed of which the car had been traveling? The formula, R(s) = 2V5s can be used to approximate the speed rate, R(S), in mph of the car that has left a skid (s) mark in feet.

a) Using this formula how far will a car skid at 75 mph? 

Solutions

Expert Solution

Here R(s) is the speed of car . S is the skidded mark length in feet .

given

given speed of car is 75mph . We need to find s at this speed.
Put R(s)= 75 in equation and find S

square both sides

answer

281.25 feet


Related Solutions

police car is traveling south towards the intersection that a robber’s car has just crossed traveling...
police car is traveling south towards the intersection that a robber’s car has just crossed traveling east. The robber’s car is currently traveling 55 mph. The police car’s speed is currently 63 mph. How is the distance between the cars changing when the cop is 1.2 miles from the intersection, and the robber is .5 miles from it? Be sure to answer in a complete sentence. 2. In calm water, an oil spill spreads out in a circular fashion. Suppose...
A car moving at a constant speed of 40m/s overtakes a stationary police car which immediately...
A car moving at a constant speed of 40m/s overtakes a stationary police car which immediately starts to chase the speeding car at a constant acceleration. What is the speed of the police car when it overtakes the speeding car? (Note: No other knowns except speed of speeding car and that the police car has constant acceleration).
In a study investigating the effect of car speed on accident severity, the vehicle speed at...
In a study investigating the effect of car speed on accident severity, the vehicle speed at impact was recorded for 5000 fatal accidents. For these accidents, the mean speed was 42 miles per hour with a standard deviation of 15 miles per hour. Assuming the speeds are normally distributed, use the empirical rule to answer the following: a) About what percent of vehicle speeds were between 42 and 72 miles per hour? b) About what percent of vehicle speeds were...
In a study investigating the effect of car speed on accident severity, the vehicle speed at...
In a study investigating the effect of car speed on accident severity, the vehicle speed at impact was recorded for 5000 fatal accidents. For these accidents, the mean speed was 42 miles per hour with a standard deviation of 15 miles per hour. Assuming the speeds are normally distributed, use the empirical rule to answer the following: a) About what percent of vehicle speeds were between 42 and 72 miles per hour? b) About what percent of vehicle speeds were...
In a poll, respondents were asked whether they had ever been in a car accident.
Find the indicated probability. In a poll, respondents were asked whether they had ever been in a car accident. 473 respondents indicated that they had been in a car accident and 243 respondents said that they had not been in a car accident. If one of these respondents is randomly selected, what is the probability of getting someone who has been in a car accident?
A car traveling with constant speed travels 150 km in 7200 s. What is the speed of the car?
A car traveling with constant speed travels 150 km in 7200 s. What is the speed of the car? Express the speed with the appropriate units.
An unmarked police car traveling a constant 80.0 km/h is passed by a speeder traveling 135...
An unmarked police car traveling a constant 80.0 km/h is passed by a speeder traveling 135 km/h . Precisely 2.00 s after the speeder passes, the police officer steps on the accelerator; if the police car's acceleration is 1.60 m/s2 , how much time passes before the police car overtakes the speeder after the speeder passes (assumed moving at constant speed)?
An unmarked police car traveling a constant 95 km/hr is passed by a speeder traveling 135...
An unmarked police car traveling a constant 95 km/hr is passed by a speeder traveling 135 km/hr. Precisely 1.00 s after the speeder passes, the police officer steps on the accelerator; if the police car’s acceleration is 2.00 m/s2 , how much time passes before the police car overtakes the speeder (assumed moving at constant speed)?
An unmarked police car traveling a constant 95km/h is passed by a speeder traveling 133km/h ....
An unmarked police car traveling a constant 95km/h is passed by a speeder traveling 133km/h . Precisely 1.00 s after the speeder passes, the police officer steps on the accelerator; if the police car's acceleration is 2.50m/s2 , how much time passes after the police car is passed by a speeder and before the police car overtakes the speeder (assumed moving at constant speed)?
A car is traveling to the right with an initial speed of 20 m/s. The car...
A car is traveling to the right with an initial speed of 20 m/s. The car slows down to a stop in 25 seconds. What is the acceleration of the car?
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT