A 1000.0 kg car is moving at 15 km/h If a 2000.0 kg truck has 23 times the kinetic energy of the car, how fast is thetruck moving? a. 51 km/h b. 41 km/h c. 61 km/h d. 72 km/h

Reeves

Reeves

Answered question

2021-05-06

A 1000.0 kg car is moving at 15 km/h If a 2000.0 kg truck has 23 times the kinetic energy of the car, how fast is thetruck moving?
a. 51 km/h
b. 41 km/h
c. 61 km/h
d. 72 km/h

Answer & Explanation

davonliefI

davonliefI

Skilled2021-05-08Added 79 answers

KE=(12)mv2
(12)(1000kg)(15000m3600s)2=8680.6J
23(8680.6)=199652.8J
If KE=(12)mv2,
v=2KEm
v=2199652.82000=14.3ms
(14.13ms)(  1km1000m )(3600sh)=50.9kmh

Do you have a similar question?

Recalculate according to your conditions!

Ask your question.
Get an expert answer.

Let our experts help you. Answer in as fast as 15 minutes.

Didn't find what you were looking for?