Traveling at 60 m/s I see an old person walk into the road 300 meters ahead and the car slows at a rate of 6.5 m/s ^ 2 when I apply brakes . What is the fate of the pensioner ?
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A driver is traveling at 40m/s when they see a speed limit sign that says 10 m/s. One second later they hit the brakes and the car slows down at a rate of 5 m/s2. How far behind is the sign from the car when the car reaches the legal speed limit?
A driver is traveling at 30.0 m>s when he sees a moose crossing the road 80.0 m ahead. The moose becomes distracted and stops in the middle of the road. If the driver of the car slams on the brakes, what is the minimum constant acceleration he must undergo to stop short of the moose and avert an accident?
Alcohol consumption slows people's reaction times. In a controlled government test, it takes a certain driver 0.39 s to hit the brakes in a crisis when unimpaired and 1.19 s when drunk. When the car is initially traveling at 93 km / h, how much farther (in meters) does the car travel before coming to a stop when the person is drunk compared to sober?
An old car is traveling down a long, straight, dry road at 25.0 m/s when the driver slams on the brakes, locking the wheels. The car comes to a complete stop after sliding 235 m in a straight line. If the car has a mass of 755 kg, what is the coefficient of kinetic friction between the tires and the road?
Ralph is driving at a constant 70.0 mi/hr (31.3 m/s) along a straight section of Route 3 North. The car directly ahead of him is also moving at 70.0 mi/hr. The front bumper of Ralph's car is located 12.00 m from the rear bumper of the car ahead when, at t0, the driver of the car ahead applies his brakes and begins to slow down at a steady rate of 6.00 2, towards the posted speed limit of 50.0 mi/hr...
16. A 300-kg motorcycle is traveling at 10 m/s. The driver notices a wreck ahead, applies the brakes. The motorcycle slides across the ground with a coefficient of kinetic friction uk = 0.3. A) Using work-energy, find the distance it takes to stop the motorcycle. B) Use work-energy to find the speed of the car 4 meters after the brakes are applied.
The speed limit in a school zone is 45 km/h. A driver traveling at this speed sees a child run onto the road 20 m ahead of his car. He applies the brakes, and the car decelerates at a uniform rate of 11.0 m/s2. If the driver's reaction time is 0.55 s, will the car stop before hitting the child?What is the stopping distance of the vehicle?
Alcohol consumption slows people's reaction times. In a controlled government test, it takes a certain driver ?1=0.31 s to hit the brakes in a crisis when unimpaired and ?2=1.19 s when drunk. If the car is initially traveling at ?=83 km/h, how much farther does the car travel before the brakes are applied when the person is drunk than it travels when the person is sober?
Alcohol consumption slows people's reaction times. In a controlled government test, it takes a certain driver ?1=0.31 s to hit the brakes in a crisis when unimpaired and ?2=0.93 s when drunk. If the car is initially traveling at ?=87 km/h , how much farther does the car travel before the brakes are applied when the person is drunk than it travels when the person is sober
A car driving 20m/s sees a deer in the road and brakes, slowing the car at a rate of -12 m/s^2. How long does it take the car to stop? If the deer is 10 meters from the car when it brakes, does the car hit it? Would the deer survive if the acceleration rate had been -15 m/s^2?