Pedestrian Accident at Traffic Crossing: Witness Testimony and Accident Analysis

[jadzia49]

boy knocked down by van at pedestrian crossing with lights. point of impact was 4.6 km from kerb.there was a witness.
boy said- i crosse imm green man came on.thought van would stop
driver said - i was traveling at 40 k/h .light was green .i slammed brakr imm. but still hit him.at no more than 10k/h
witness said i was behind boy .boy walked quickly as green man came on

the witness was asked to walk 5m several times at same pace as boy when crossind. average time was 2.9s. slight injury to boy impact speed most 10 k/h.
4 skid marks longest 19.8m. coeff of tyre/road friction was 0.76.phasing for lights- yellow light lasted 3s before green man and the red light came on together

1. dist van travel after impact?
2. dist travelledfrom braking to impact
3.speed of van before braking
4. average speed while braking
5. stopping time
6time elapsing between impact and stopping
7.time passing between start of braking and impact
8. reaction time of driver
9.what time between seeing the boy and impact
10.boys reaction time after seeing light turn green
11.dist boy stands from the kerb
12.dist boy walks before impact
13.time taken for this walk

have tried most but would like to check answers
WILL PAY WHATEVER U THINK IS REASONABLE BUT THIS IS URGENT

 

[Pengwuino]

We won't do your work and certainly won't take pay-outs. Show us some work and we can help.

 

[kyle8921]

1. The distance the van traveled after impact cannot be accurately determined without knowing the speed of the van before braking and the coefficient of friction between the tires and the road. However, based on the given information, it can be estimated that the van traveled at least 19.8 meters (length of the longest skid mark) after impact.

2. The distance traveled from braking to impact is approximately 4.6 km (point of impact) minus the distance the van traveled after impact. This would also depend on the speed of the van before braking and the coefficient of friction.

3. The speed of the van before braking is stated as 40 km/h by the driver.

4. The average speed while braking cannot be accurately determined without knowing the distance the van traveled while braking and the time it took to stop. However, based on the given information, it can be estimated that the average speed while braking was less than 10 km/h.

5. The stopping time cannot be accurately determined without knowing the distance the van traveled while braking and the average speed while braking.

6. The time elapsing between impact and stopping also cannot be accurately determined without knowing the distance the van traveled while braking and the average speed while braking. However, it can be estimated that the time was likely less than 3 seconds (the duration of the yellow light).

7. The time passing between the start of braking and impact cannot be accurately determined without knowing the distance the van traveled while braking and the average speed while braking. However, it can be estimated that the time was likely less than 3 seconds (the duration of the yellow light).

8. The reaction time of the driver cannot be accurately determined without knowing the time it took for the driver to see the boy and react. However, based on the given information, it can be estimated that the reaction time was less than 3 seconds (the duration of the yellow light).

9. The time between seeing the boy and impact cannot be accurately determined without knowing the time it took for the driver to react and the distance the van traveled while braking. However, based on the given information, it can be estimated that the time was likely less than 3 seconds (the duration of the yellow light).

10. The boy's reaction time after seeing the light turn green cannot be accurately determined without knowing the time it took for him to see the light turn green and the distance he walked before impact. However, based on the given information, it can