HomeworkLib
Question

A 1300 kg car coasts on a horizontal road with a speed of 18 m/s. After crossing an unpaved, sandy stretch of road 38.5 m long its speed decreases to 14 m/s. (a) Was the net work done on the car positive, negative, or zero? positive Zero negative Explain. This answer has not been graded yet. (b) Find the magnitude of the average net force on the car in the sandy section kN

Please answer all parts

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

Homework Answers

Answer #1

| F-1300 (14-18

0 0
Add a comment
Know the answer?
Add Answer to:
Please answer all parts A 1300 kg car coasts on a horizontal road with a speed...
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

  • A 1200 kg car is coasting on a horizontal road with a speed of 18 m/s...

    A 1200 kg car is coasting on a horizontal road with a speed of 18 m/s . After passing over an unpaved, sandy stretch 35.0 m long, car's speed has decreased to 12 m/s . Part A Was the net work done on the car positive, negative, or zero? Part B Find the magnitude of the average net force on the car in the sandy section of the road. Express your answer to two significant figures and include the appropriate...

  • stationary a Q5. A bull of is fired into a large statio absorber & comes to...

    stationary a Q5. A bull of is fired into a large statio absorber & comes to rest. Temperature measurement of the absorber shows that the ballef lost 1960J of Kinetic energy, f the high-speed photos of bullet shows that it was moving with 965 m just as it struck the absorber. What is the mass (m) of the bullet? Answer - car coasts Q6. A 1180-kg on a horizontal road with a speed of 19 m. After crossing an unpaved,...

  • gth of the Cirrl 1. A 1300 kg car moving on a flat, horizontal road negotiates...

    gth of the Cirrl 1. A 1300 kg car moving on a flat, horizontal road negotiates a curve as shown in figure. If the radius of the curve is 40 m and the coefficient of static friction between the tires and dry pavement is 0.6, find the maximum speed the car can have and still make the turn successfully.

  • 1. A car of mass 975 kg coasts on a level road, starting with an initial...

    1. A car of mass 975 kg coasts on a level road, starting with an initial speed of 15.0 m/s and coming to rest 15.0 s later. Find the frictional force acting on the car.

  • A car starting from rest on a horizontal road accelerates for 11 seconds until it reaches...

    A car starting from rest on a horizontal road accelerates for 11 seconds until it reaches a speed of 35 m/s. It then maintains this speed until it starts driving up a hill that is a 11° incline. Just as the car starts up the hill the engine dies and it coasts to a stop on the hill. A) Sketch the car’s trip. You can treat the horizontal and sloped parts as separate but connected. Identify all variables. Collect all...

  • #1 a)   Calculate   the   difference   in   kinetic   energy   when   a   1300   kg   car   changes   its   speed&n

    #1 a)   Calculate   the   difference   in   kinetic   energy   when   a   1300   kg   car   changes   its   speed   from                       90.0   m/s   to   50.0   m/s.                         b)       How   much   work   is   done   on   the   car   by   friction   force   between   the   tires   and   road?       Specify       the   sign   of   work.   please answer both as they go together

  • A 1300-kg car is skidding to a stop along a horizontal surface. The car decelerates from...

    A 1300-kg car is skidding to a stop along a horizontal surface. The car decelerates from 27 m/s to a rest position in 4.5 seconds. Assuming negligible air resistance, determine the friction between the car tires and the road surface.

  • An open train car, with a mass of 2030 kg, coasts along a horizontal track at...

    An open train car, with a mass of 2030 kg, coasts along a horizontal track at the speed 2.33 m/s. The car passes under a loading chute and, as it does so, gravel falls vertically into it for 3.41 s at the rate of 425 kg/s. What is the car\'s speed after the loading is completed? Ignore rolling friction (as unrealistic as that may be).

  • Answer all parts please. A car is initially at rest on a straight road. The qraph...

    Answer all parts please. A car is initially at rest on a straight road. The qraph shows the acceleration of the car along that road as a fun 2 0 12 3 45 6 7 8 9 10 11 12 13 14 t (s) What is the speed of the car at t-7 s? Submit Answer You have entered that answer before Incorrect. Tries 3/12 Previous Tries What distance does the car cover in the first 8 seconds? Submit Answer...

  • A 1300 kg car rolling on a horizontal surface has speed v = 56 km/h when...

    A 1300 kg car rolling on a horizontal surface has speed v = 56 km/h when it strikes a horizontal coiled spring and is brought to rest in a distance of 2.5 m . Part A What is the spring constant of the spring? Express your answer using two significant figures. IVO AED OD? N/m

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