- #1
misyg
- 5
- 0
While driving my 1,500kg car at 18 m/s, I unexpectedly see a stop sign and must brake hard. How much work must be done on the car to stop it?
I used KE=1/2(mv2)
I came up with the answer of 243,000 J, but my professor gave me only 5 out of 10 points for the answer...any one see where I went wrong?
I used KE=1/2(mv2)
I came up with the answer of 243,000 J, but my professor gave me only 5 out of 10 points for the answer...any one see where I went wrong?