Question

A 2000 kg car accelerates from 31 KPH to 95 KPH. What is ratio of final...

A 2000 kg car accelerates from 31 KPH to 95 KPH. What is ratio of final kinetic energy to initial kinetic energy?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A 40%-efficient car engine accelerates the 2000 kg car from rest to 19 m/s . How...
A 40%-efficient car engine accelerates the 2000 kg car from rest to 19 m/s . How much energy is transferred to the engine by burning gasoline?
"A 2000-kg car accelerates from 20 to 60 km/h on an uphill road. The car travels...
"A 2000-kg car accelerates from 20 to 60 km/h on an uphill road. The car travels 120 m and the slope of the road from the horizontal is 25 degrees. Determine the work done by the engine." The answer is 1240 kJ using the First Law of Thermodynamics, but please explain sign conventions of Work and whether or not the engine is excluded from the system... thank you
A 2000-kg car travelling at 50 m/s collides with an object of (your student number)-kg travelling...
A 2000-kg car travelling at 50 m/s collides with an object of (your student number)-kg travelling at 12 m/s inan opposite direction. (a) Find change in kinetic energy if both stick together and if collision is absolutely elastic. (b)Show final velocities in both cases for both objects. (c) What percentage of the original kinetic energy is this?
A 2000 kg car starts from rest. After 2 seconds, the car is moving at a...
A 2000 kg car starts from rest. After 2 seconds, the car is moving at a velocity of 9 m/s. There is a retarding friction force of 600N acting on the car. What is the power needed by the car in order to accelerate from rest to that final velocity?
A car engine accelerates from 1000 to 2000 rpm at a constant rate during 15 s....
A car engine accelerates from 1000 to 2000 rpm at a constant rate during 15 s. a) Find the angular acceleration of the engine b) Find the number of rotations the engine revolves from it starts at 1000 rpm until it has accelerated to 2000 rpm.
a 2500 kg car accelerates uniformly from rest to 15.0 m/s in 8.00 s. What is...
a 2500 kg car accelerates uniformly from rest to 15.0 m/s in 8.00 s. What is the work done on the car in this time interval? What is the power delivered by the engine in this time interval? Answer in 3 decimal places, and include full equation please
A 675 kg car accelerates from 54.0 km/h to come to a stop in a distance...
A 675 kg car accelerates from 54.0 km/h to come to a stop in a distance of 175 m.   Determine the net work done on the car Determine the force acting on the car  
A 1200-kg car initially at rest undergoes a constant acceleration for 8.8 s reaching a speed...
A 1200-kg car initially at rest undergoes a constant acceleration for 8.8 s reaching a speed of10 m/s. It then collides with a stationary car that has a perfectly elastic spring bumper. (a) What is the final kinetic energy of the two-car system? (b) If the initially stationary car has inertia equal to 2000 kg, what are the final velocities? (Not speeds) (c) What assumptions/conditions allowed you to use the equations to solve the problems?
As a car accelerates from rest to highway speed, a pedestrian watching the motion sees positive...
As a car accelerates from rest to highway speed, a pedestrian watching the motion sees positive work done on the car because its kinetic energy increases. However, from the reference frame of someone driving in the same direction at highways speed, the car is initially moving (backward) and then becomes stationary, corresponding to negative work. Which observer is right?
1- During a collision, a 2000-kg car experiences an impulse of 317 N·s.  What is the change...
1- During a collision, a 2000-kg car experiences an impulse of 317 N·s.  What is the change in momentum of the car? 2- A 0.8-kg object is in a collision where it experiences a -6.2 N·s impulse.  If the initial velocity of the object was -1.6 m/s, what will the final velocity of the object be after the collision? 3- A uniform rod has a pivot point at its center. A mass of 0.19-kg is hung 0.15 m from the pivot on...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT