Answer to Question #295489 in Optics for yaa

Question #295489
  • An object with a mass of 3.50 kg moves in a straight line on a frictionless horizontal surface with a speed of 2.0 m/s. Find the kinetic energy and the net work done on the object to make it reach this speed if it started from rest.
1
Expert's answer
2022-02-09T09:14:40-0500

Answer

Mass m=3.5kg

Speed v=2.0 m/s

So kinetic energy

"K=0.5mv^2=0.5\\times3.5\\times2\\\\=3.5J"

According to work energy theorem

"\\Delta K=work done"

Here final speed is zero due to rest

So

Work done="K=7J"




Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be the first!

Leave a comment

LATEST TUTORIALS
New on Blog
APPROVED BY CLIENTS