ZuoTi.Pro
Question

6) A driver is going 90 km/hr when he suddenly sees the stop light 40 m ahead. It takes the s before he applies the brakes. Once he does begin to brake, he decelerates at a rate of 10 m/s2 a) b) Does he stop on time? What would be the maximum speed at which the driver can go and NOT pass the stop light?

Please help me understand how to solve this problem

science   physics   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

es, because stoppig distaue d - 15.43 440 m 2. Umax-40+2.8 0.75

0 0
Add a comment
Know the answer?
Add Answer to:
Please help me understand how to solve this problem 6) A driver is going 90 km/hr...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • 5. The driver of a car travelling 75.0 km/hr suddenly sees road construction up ahead. She...

    5. The driver of a car travelling 75.0 km/hr suddenly sees road construction up ahead. She takes 2.30 s to begin applying the brakes. The car slows down at a constant rate of 10.0 km/br's for until she comes to a stop. a. Draw a picture showing the various intervals of the car's motion and accelerations, b. Calculate the average acceleration of the car after the driver applies the brake c. What is the total distance the car travelled from...

  • The speed limit in a school zone is 45 km/h. A driver traveling at this speed...

    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?

  • Please help 12-17. Car B is traveling a distance d ahead of car A. Both cars...

    Please help 12-17. Car B is traveling a distance d ahead of car A. Both cars are traveling at 60 ft/s when the driver of B suddenly applies the brakes causing his car to decelerate at 12 ft/s. It takes the driver of car A 0.75 s to react (this is the normal reaction time for drivers). When he applies his brakes he decelerates at 15.ft/s2. Determine the minimum distance d be tween the cars so as to avoid a...

  • Answer all and write clearly please A driver, cruising along at 55 mph, sees the traffic...

    Answer all and write clearly please A driver, cruising along at 55 mph, sees the traffic light turn red. He steps on the brakes and decelerates at a constant 5.0 m/s2. 4. 55 mph (a) What is the speed of the car in m/s? (10 points) (b) How far did he travel before coming to rest? (10 points) (c) How long does it take him to come to a stop? (10 points)

  • Constants | Periodic Table Part A An inattentive driver is traveling 19.0 m/s when he notices...

    Constants | Periodic Table Part A An inattentive driver is traveling 19.0 m/s when he notices a red light ahead. His car is capable of decelerating at a rate ot 3.73 m/s2 If it takes him 0.250 s to get the brakes on and he is 61.0 m from the intersection when he sees the light, will he be able to stop in time? O no O yes O insulicient data to answer this question

  • Exercise 6110pts) Acceleration is sometimes measured in g. w here 10x-93 m/é, How many g's correspond...

    Exercise 6110pts) Acceleration is sometimes measured in g. w here 10x-93 m/é, How many g's correspond is the steady acceleration of a car doing "zero to sixty"1 in 10.0 seconds? reaching a s the brakes (reaction time stop at the next light. The whole episode takes 150s. How far does the car travel? (Partial A: from a stop at a traffic light and acceterates at u rate of 4.0m/s2. Immedialely on peod of 32 m's, the driver sees that the...

  • 1) Review Interactive Solution 2.33 in preparation for this problem. Suppose a car is traveling at...

    1) Review Interactive Solution 2.33 in preparation for this problem. Suppose a car is traveling at +20.6 m/s, and the driver sees a traffic light turn red. After 0.421 s has elapsed (the reaction time), the driver applies the brakes, and the car decelerates at 5.00 m/s2. What is the stopping distance of the car, as measured from the point where the driver first notices the red light? 2) A VW Beetle goes from 0 to 41.0 mi/h with an...

  • Ralph is driving at a constant 70.0 mi/hr (31.3 m/s) along a straight section of Route...

    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...

  • Can Some one solve for me this 5 problem. with Question numbers. this all Problem. thank...

    Can Some one solve for me this 5 problem. with Question numbers. this all Problem. thank you   13) What force is needed to accelerate a 30.0 lb block at 2.2 m/s? 14) What force is needed to stop a 1500 kg car in 40 m if it is initially moving at 35 miles per hour? 15) A particle is moving in a straight line with constant acceleration a. Derive a general equation for velocity v at position x in terms...

  • Please help me understand this problem An observer in an inertial reference frame S sees lightning...

    Please help me understand this problem An observer in an inertial reference frame S sees lightning strike simultaneously at two points that are 870 nm apart. He measures that the location of the first lightning strike is given by the four coordinates x1 0 m, y1 0 m, z1 0 m, and t0 s. He measures that the location of the second lightning strike is given by the four coordinates X2 = 870 m, y2 = 0 m, z2 0...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT