Question

A 500-kg dragster accelerates from rest to a final speed of 110 m/s in 400 m...

A 500-kg dragster accelerates from rest to a final speed of 110 m/s in 400 m (about a quarter of a mile) and encounters an average frictional force of 1200 N. What is its average power output in watts and horsepower if this takes 7.30 s?

In this question, the answer will lead to Energy=KE final+ W friction
How is it + while friction will go to the oppisite side of the path the dragster goes? Or is that an equation I don't know???
Thanks
Science   Advanced-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
An 5-kg animal accelerates from rest to 10 m/s in 10 m and encounters an average...
An 5-kg animal accelerates from rest to 10 m/s in 10 m and encounters an average drag force of 12 N. What is the average power output in Watts if this takes 2.0 seconds?
An automobile accelerates from rest to a final speed of 25 m/s over 19.2 s. Then...
An automobile accelerates from rest to a final speed of 25 m/s over 19.2 s. Then the automobile continues traveling at its final speed for an additional 28.6 s. What is the total distance traveled over the full time (in meters)?
a car accelerates uniformly from rest to 24.1 m/s in 9 s along a level stretch...
a car accelerates uniformly from rest to 24.1 m/s in 9 s along a level stretch of road. Ignoring friction , determine the average power required to accelerate the car if the mass of the car is 1,131 kg
A 1.50 ✕ 103-kg car starts from rest and accelerates uniformly to 16.0 m/s in 12.9...
A 1.50 ✕ 103-kg car starts from rest and accelerates uniformly to 16.0 m/s in 12.9 s. Assume that air resistance remains constant at 400 N during this time. (a) Find the average power developed by the engine. ____ hp (b) Find the instantaneous power output of the engine at t = 12.9 s, just before the car stops accelerating. ______ hp
A 1.50 ✕ 103-kg car starts from rest and accelerates uniformly to 15.1 m/s in 12.7...
A 1.50 ✕ 103-kg car starts from rest and accelerates uniformly to 15.1 m/s in 12.7 s. Assume that air resistance remains constant at 400 N during this time. (a) Find the average power developed by the engine. (hp) (b) Find the instantaneous power output of the engine at t = 12.7 s, just before the car stops accelerating. (hp)
A car accelerates uniformly from rest and reaches a speed of 21.0 m/s in 9.05 s....
A car accelerates uniformly from rest and reaches a speed of 21.0 m/s in 9.05 s. Assume the diameter of a tire is 59.0 cm. (a) Find the number of revolutions the tire makes during this motion, assuming that no slipping occurs. rev (b) What is the final angular speed of a tire in revolutions per second? rev/s
A car accelerates uniformly from rest to 17.9 m/s in 6.31 s along a level stretch...
A car accelerates uniformly from rest to 17.9 m/s in 6.31 s along a level stretch of road. Ignoring friction, determine the average power required to accelerate the car if (a) the weight of the car is 8.28 x 103 N, and (b) the weight of the car is 1.58 x 104 N.
a) A car accelerates uniformly from rest and reaches a speed of 13.7 m/s in 10.9...
a) A car accelerates uniformly from rest and reaches a speed of 13.7 m/s in 10.9 s. The diameter of a tire is 71.8 cm. Find the number of revolutions the tire makes during this motion, assuming no slipping. Answer in units of rev. b) What is final rotational speed of a tire? Answer in units of rev/s.
A football punter accelerates a football from rest to a speed of 10.0 m/s during the...
A football punter accelerates a football from rest to a speed of 10.0 m/s during the time in which his foot is in contact with the ball (about 0.20 s). a) If the football has a mass of 0.42 kg, what average force does the punter exert on the ball? b) If the punter’s mass is 80.0 kg, what average force is exerted on his foot?
A 1,500 kg car starts from rest and accelerates to 23 m/s in 11 s. Assume...
A 1,500 kg car starts from rest and accelerates to 23 m/s in 11 s. Assume that the air resistance remains constant at 162 N. Calculate the acceleration of the car. Calculate the average force exerted by engine during this time. Calculate the average velocity of the car. Calculate the average power output during this time.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT