You could stop at 20 miles per hour without hitting him.
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Assuming The Highway Code formula for stopping distances:
stopping_distance = thinking distance + stopping time
= speed + speed²/20 ft (where speed is in mph)
→ 65 = speed + speed²/20
→ speed² + 20speed + 1300 = 0
→ speed = -10 + 10√14 mph ≈ 27.4 mph
(The negative square root can be ignored as it gives a negative speed which is nonsense for this problem.)
However, this assumes that you observe, think and can start braking within 15/22 (≈ 0.68) seconds of the child running into the road (1ft for every 1 mph of speed), and your braking matches the Highway Code assumptions for good tyres, brakes and dry road conditions.
At 30mph your vehicle travel 44 feet/sec. That's your limit.
40 mph = 59 feet/sec and will be too late.
Be careful.
About 20 mph, but it would depend greatly on other factors such as road conditions, size and weight of vehicle, operator reaction speed, etc.
15miles per hour
30 mph
40
Avoid hitting the brakes.
15 mph
Air brakes allow you to use less force when hitting the brakes. Heavy equipment takes a lot of force to make them stop and without the air brakes we would have to use a lot of strength in order to stop the vehicle.
You would adjust the brakes on a vehicle with abs brakes the same way you would adjust the brakes on a vehicle without abs brakes.
Safe following distances create a 'buffer zone' whereby if the vehicle in front slams on its brakes - theoretically there is enough road space for you to stop safely BEFORE hitting it ! Safe following distances are affected by road & weather conditions.
The person who was following too closely to stop before hitting the car ahead.
No, the 2003 Camry does not have disc brakes on the rear of the vehicle.
This is the maximum amount of weight a vehicle can tow, if what being towed has brakes. A towed vehicle with brakes (electronic brakes) responds to the same braking that the vehicle doing the towing has. If the vehicle being towed does not have brakes, the maximum towing capacity is much less.
The front brakes on any vehicle do most of the stopping. When you apply the brakes the weight shifts to the front of the vehicle. For this reason the front brakes are needed more than the rear. Try stopping a vehicle with just the hand brake which applies only the rear brakes.
Yes, that is the purpose of brakes.
brakes.
Stopping a vehicle with good brakes from 20 miles per hour under good conditions requires about 80 feet. Leaving at least 80 feet will allow you to stop safely without hitting the car in front of you.