Homework Help: physics

Posted by Anonymous on Tuesday, November 9, 2010 at 1:59pm.

A car is moving such that its kinetic energy is 2.20×105 J. The car accelerates and the engine does 2.10×105 J of work to accelerate the car. What is the final kinetic energy of the car? Ignore energy lost to friction.
(Your answer must be accurate to at least 1%. Give your answer to at least three significant figures.)

physics - bobpursley, Tuesday, November 9, 2010 at 2:05pm
What is 2.20E5+2.1E5 ?

Answer this Question

Related Questions

Physics - When one gallon of gasoline is burned in a car engine, 1.20 108 J of ...
physics - A 40%-efficient car engine accelerates the 1300 kg car from rest to 20...
Physics ~please help me! - 1.) A car (m=1200 kg) moves form 2.0 m/s to 15.0 m/s ...
physics - Let a force of 1500 Newtons act through a distance of 200 meters on a ...
Physics - A car of mass 1200kg starts from rest, accelerates uniformly to a ...
physics - How do i find this? A shooting star is a meteor that burns up when it ...
physics - A 2000 kg car is moving with a velocity of 50 km/hr. What is its ...
Physics - Two cars are moving. The first car has twice the mass of the second ...
physics 11 - A 1200 kg car on a horizontal surface starts from rest and ...
Physics - Car A is traveling at 18 m/s and car B at 25 m/s. Car A is 300m behind...

For Further Reading

First Name:
School Subject:
Answer: