Question

Consider a 1,233 kg car cruising at constant speed of 71 km/h. Now the car starts...

Consider a 1,233 kg car cruising at constant speed of 71 km/h. Now the car starts to pass another car, by accelerating to 119 km/h in 7 s. Neglect air drag and friction and assume the road is level. By taking the entire car as the system and appying an energy balance, determine the additional power (kW) needed to achieve this acceleration to 1 decimal place. (note: 1 m/s = 3.6 km/h)

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

plz upvote!

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
Centripetal Acceleration: A car moving with a constant speed of 80 km/h enters a circular, flat...
Centripetal Acceleration: A car moving with a constant speed of 80 km/h enters a circular, flat curve with a radius of curvature of 0.50 km.  If the friction between the road and the car’s tires can support a centripetal acceleration of 1.20 m/s2, without slipping, does the car navigate the curve safely, or does it fly off the road? Perform calculations to justify your answer. Be sure to perform all the necessary dimensional conversions to mks units.
The car with 20000 N weight increases its speed uniformly from 18 km/h to 90 km/h...
The car with 20000 N weight increases its speed uniformly from 18 km/h to 90 km/h in 40 s up the inclined rough road with 15 angle and the coefficient of kinetic friction between the car and the ground is k = 0.5. Determine: ▪ the maximum power that must be supplied by the car engine ( = 0.8), ▪ the average power supplied by the engine. ▪ the initial kinetic energy T1 ▪ the final kinetic energy T2 ▪...
A model car is tested in a large wind tunnel at an airspeed of 200 km/h....
A model car is tested in a large wind tunnel at an airspeed of 200 km/h. The model is 0.8m long and is a geometrically similar ¼ scale model of the full-size prototype car. If a drag force of 1.2kN is measured on the model in the wind tunnel, estimate the power the full-size car would require to overcome the drag force when travelling at a speed of 50km/h How would you describe the flow? Are similarity conditions met? Explain....
A 3500-kg car traveling at 65 km/h skids and hits a wall 3 seconds later. The...
A 3500-kg car traveling at 65 km/h skids and hits a wall 3 seconds later. The coefficient of friction between the tires and the road is 0.10. What is the speed of the car in m/s when it hits the wall? A. 15.11 B. 12.64 C. 6.29 D. 0.14 E. 4.88 F. 8.58
5) Starting from rest, a car accelerates at a constant rate, reaching 88 km/h in 17...
5) Starting from rest, a car accelerates at a constant rate, reaching 88 km/h in 17 s. (a) Find its acceleration. (b) Find how far does it goes in this time. 6) A delivery drone drops a well-cushioned package from a height of 15.7 m onto a customer’s porch. At what speed does the package hit the porch? 7) A diver drops from a 7.44-m high cliff. (a) At what speed does she enter the water? (b) How long is...
1. A car traveling 69 km/h is 247 m behind a truck traveling 93 km/h. How...
1. A car traveling 69 km/h is 247 m behind a truck traveling 93 km/h. How long will it take the car to reach the track? Calculate to one decimal 2.Suppose one of Napoleon cannons has a muzzle speed of 32m/s. It was aimed at 54 ◦ angle. What height can the cannon ball reach? Use g = 9.8 m/s2 Calculate to one decimal 3.A girl throws a rock horizontally, with a velocity of 13 m/s, from a bridge. It...
What tools could AA leaders have used to increase their awareness of internal and external issues?...
What tools could AA leaders have used to increase their awareness of internal and external issues? ???ALASKA AIRLINES: NAVIGATING CHANGE In the autumn of 2007, Alaska Airlines executives adjourned at the end of a long and stressful day in the midst of a multi-day strategic planning session. Most headed outside to relax, unwind and enjoy a bonfire on the shore of Semiahmoo Spit, outside the meeting venue in Blaine, a seaport town in northwest Washington state. Meanwhile, several members of...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT