Topic 5 More Ln Stopping Distances

Question 1

Thinking distance and breaking distance at 30 mph

Answer 1

Thinking distance 9
Braking distance 14

Question 2

Stoping dístacne at 50mph

Answer 2

Thinking distance 15
Braking distance 38

Question 3

70mph

Answer 3

Thinking distance 21
75

Question 4

What does leaving enough space allow

Answer 4

Stopping suddenly

Question 5

What is speed limits important

Answer 5

Speed affect the stopping distance so much

Question 6

What happens to thinking distance as the speed increases

Answer 6

The thinking distance increases the graph is linear

Question 7

When does braking distance increase faster

Answer 7

The more you speed up

Question 8

If we’re done to stop the car is equal to the energy in the cost kinetic energy store what happens as the speed doubles 

Answer 8

The kinetic energy increases two squared and so the work done to stop the car increases two squared W equals FS and the braking force is constant of the braking force increases two squared