Question

You are driving down IL-53 at 45 miles per hour in your 1325 kg car. As...

You are driving down IL-53 at 45 miles per hour in your 1325 kg car. As you look down to check a text, a car 75 m in front of you stops. It takes you 2.0 s to look at the text, realize there’s a stopped car in front of you, and hit the brakes. Your car skids along the concrete (µk=0.8 between rubber and dry concrete) and slows. (a) How far does your car travel in those 2.0 s before starting to slow? (b) Does your car stop before hitting the car in front of you? If not, how fast are you going when you strike the car? Show your work and draw a force diagram for full credit. (c) If you were on wet pavement, the coefficient of kinetic friction drops to 0.5. Would your car stop in this case? If not, how fast would it be going when it strikes the car in front?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Traveling at 40.2 m/s, a driver applies the brakes to his fast-moving car and skids out...
Traveling at 40.2 m/s, a driver applies the brakes to his fast-moving car and skids out of control on a wet concrete horizontal road. The 2000 kg car is headed directly toward a student waiting to catch a bus to campus who is standing 58.0 m down the road. Luckily, Superman is flying overhead and surveys the situation. Knowing that the coefficient of kinetic friction between rubber and rough wet concrete is .800, he determines that friction alone will not...
A ball rolls onto the path of your car as you drive down a quiet neighborhood...
A ball rolls onto the path of your car as you drive down a quiet neighborhood street. To avoid hitting the child that runs to retrieve the ball, you apply your brakes for 1.14 s. The car slows down from 14.5î + 4.50 m/s to 8.25î + 3.50 m/s. The mass of the car is 1.21  103 kg. (a) During the time the brakes were applied, what was the average force exerted on your car? Express your answer in vector form....
You are driving on a mountain highway in your car, which is sloped downward at an...
You are driving on a mountain highway in your car, which is sloped downward at an angle of 7 degrees below the horizontal. Your car has a mass of 1200kg and your speed is 25 m/s. A moose steps out into the highway and you slam on your brakes, skidding to a stop. The force of kinetic friction between your car and the road is 9500.0 N. a) Using an energy analysis, compute how far you skid before you come...
A truck with a mass of 1800 kg traveling 32 miles per hour collides with a...
A truck with a mass of 1800 kg traveling 32 miles per hour collides with a car (mass = 1100 kg) sitting at a stop sign. The two lock together and both cars slide into the intersection. Both drivers slam on the brakes in desperation. The coefficient of friction between the tires and the road is 0.58. a. What is the momentum of each car before the collision? b. What is their combined momentum after the collision? Justify your answer....
You're driving down the highway late one night at 20m/s when a deer steps onto the...
You're driving down the highway late one night at 20m/s when a deer steps onto the road 47 m in front of you. Your reaction time before stepping on the brakes is 0.50s, and the maximum deceleration of your car is 10m/s2. A) Part complete How much distance is between you and the deer when you come to a stop? Express your answer to two significant figures and include the appropriate units. B)What is the maximum speed you could have...
While driving down the street, your friend’s car was hit by a truck from behind.  The mass...
While driving down the street, your friend’s car was hit by a truck from behind.  The mass of your friend’s car is 1500 kg while the truck is 1800kg.  Your friend was driving 25 mph or 11.2 m/s. Assume that collision causes both cars to stick together and they do not supply additional power to the wheels after the collision. After the collision, the two cars slide to a stop. The coefficient of kinetic friction is 0.65 for the car and truck...
You are driving your car uphill along a straight road. Suddenly, see a car cross a...
You are driving your car uphill along a straight road. Suddenly, see a car cross a red light and enter the intersection, just ahead of you. Immediately apply your brakes and skid in a straight line to stop, leaving a mark of 100 ft long by sliding. A policeman observes the whole incident, gives a ticket to the driver of the car for passing a red light. It also gives a ticket to you for exceeding the 30 mph speed...
You are driving your car uphill along a straight road. Suddenly, see a car cross a...
You are driving your car uphill along a straight road. Suddenly, see a car cross a red light and enter the intersection, just ahead of you. Immediately apply your brakes and skid in a straight line to stop, leaving a mark of 100 ft long by sliding. A policeman observes the whole incident, gives a ticket to the driver of the car for passing a red light. It also gives a ticket to you for exceeding the 30 mph speed...
1.You are headed down a highway at 30.0m/s in your 1210 kg car texting away on...
1.You are headed down a highway at 30.0m/s in your 1210 kg car texting away on your phone when you just happen to look up and see that you have crossed the centerline and are colliding with a 36300 kg truck going 30.0m/s in the opposite direction. Momentum is conserved in all collisions. Sketch and label a diagram choosing which direction is positive. A.what is the total momentum of the two-vehicle system keeping in mind that the momentum is a...
Jim Watanabe was in his new car, driving down I-5, on his way to work. He...
Jim Watanabe was in his new car, driving down I-5, on his way to work. He dreaded the phone call he knew he was going to have to make. The original go-live date for a pilot implementation of Petrie Electronics’ new customer relationship management (CRM) system was July 31. That was only six weeks away, and Jim knew there was no way they were going to be ready. The XRA CRM they were licensing turned out to be a lot...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT