KE = 1/2 mv^2
plug in your numbers and solve for v
A 20 kg dog has 250 J of kinetic energy as it chases after a cat. The dogs velocity is
A) 5 m/s
B) 250 m/s
C) 12.5 m/s
D) 25 m/s
3 answers
the other guy forgot to show his work, but it is 5m/s
KE = 1/2 mv^2
250 = 1/2 20v^2
*2
500 = 20v^2
/20
25 = v^2
sqrt
5 = v
KE = 1/2 mv^2
250 = 1/2 20v^2
*2
500 = 20v^2
/20
25 = v^2
sqrt
5 = v
Answers
1. 5 m/s
2. A ball being launched from the ground to its apex
3. The total kinetic energy remains the same
4. 76,761
5. The energy loss must increase
1. 5 m/s
2. A ball being launched from the ground to its apex
3. The total kinetic energy remains the same
4. 76,761
5. The energy loss must increase
1 answer