Consider two cars, a 700kg Porsche and a 600kg Honda Civic. The Porsche is speeding along at 40 m/s (mph) and the Civic is going half the speed at 20 m/s. If the two cars brake to a stop with the same constant acceleration, are either the amount of time required to come to a stop, or the distance traveled prior to stopping influenced by their initial velocity?

Let's assume that East Lake Road runs due East from the Boston Store in Erie, and there are mile markers along it ("Ten Miles from the Boston Store", etc.) A car starts at the 12 mile marker going East at 2 PM, turns around at the 20 mile marker at 3 PM, and stops at the 8 mile marker at 4 PM. What is the total displacement of the car from 2 PM to 4 PM, in miles? (Use "+" for East, and "-" for West) O +4 O-20 O +20 O -4 O none of the answers is correct

Assume you are driving a car at a constant speed of 76 km/h. Suddenly you see a deer standing on the highway and you must put on the brakes. Your reaction time (time elapsed between the moment you see the deer and your foot hitting the brakes) is 0.118 s. The brakes provide an acceleration with a magnitude of 4 m/s2, and a direction opposite the initial velocity.   How do you find the total distance traveled?

You toss a stone straight up and it comes back down in a total time of 6 s, what is the speed of the stone when it comes back to the same hight from where you tossed it. Ignore air resistance. 100 m/s 20 m/s 10 m/s 30 m/s

On a hot day in the flats, the temperature is 100.9 degrees. A driver finds an empty, flat stretch of desert that is 1575 meters long and decides to push the limits of his car. He finds the car can accelerate from 0 to 60 mph (26.8 m/s) in 4.21 s. Now he wants to see how fast the car can go. Assume the car maintains the same average acceleration until it reaches its top speed of 69.1 m/s. (a) How long will it take the car to reach its top speed? (b) How far will the car travel before it reaches its top speed?

You and your family are going on a road trip to visit your recently married cousin in B.C. The total round trip distance is 2100 km. On the way to B.C., you encounter no setbacks and you are able to drive on average at a constant speed. On the way home from B.C., you encounter a snowstorm and your mom has to slow down to avoid getting into an accident. Thus, your average speed decreases by 10 km/h. If the total driving time was 42 hours, what was your average speed on the way to B.C.? Recall distance = speed x time.

A boat running at its top speed takes 3.0 hours to travel 12 km down a river. It then takes 5.0 hours to return to its starting place. What is the velocity of the river? (Answer should look like '0.35 km/h'. I know bad units.)

The driver of a truck slams on the brakes when he sees a tree blocking the road. The truck slows down uniformly with an acceleration of -5.60 m/s2 for 4.20 s, making skid marks 62.4 m long that end at the tree. With what speed does the truck then strike the tree?

A train, traveling at a constant speed of 25 m/s, comes to an incline with a constant slope. While going up the incline, the train slows down with a constant acceleration of magnitude 1.8 m/s2. What is the speed of the train after 8.0 s on the incline?

If a stone is dropped from the top of a tower with initial release velocity equal to zero, it falls a distance d in time t given by d = ½ gt2 where g is acceleration due to gravity (g = 9.8 m/s2). Its speed v at time t is given by v = gt. Suppose you go to the top of a tower and drop a stone. It hits the ground after 4.5 seconds. By how much does it drop in 1 second? How much is its displacement between 1 s and 2 s? What is the height of the tower? Drop = 14.7 m, Displacement = 4.9 m, Height = 19.6 m Drop = 4.9 m, Displacement = 14.7 m, Height = 99 m Drop = 4.9 m, Displacement = 14.7 m, Height = 19.6 m