Answer to Question #22052 in Mechanics | Relativity for chylsea

Question #22052

what is the kinetic energy of a 3-kg object moving at 7 m/s ?

Expert's answer

T = m*v^2/2
T - kinetic energy of the body
m - mass of the body
v - speed of the body
In our case:
v = 7 m/s
m = 3 kg
Therefore
T = 3kg*(7m/s)^2/2 = 147/2 J = 73.5 J

Learn more about our help with Assignments: Mechanics Relativity

Comments

No comments. Be the first!

Leave a comment

Related Questions

1. an object is dropped from some height. During the drop the potential energy of the object does what?
2. A raft is constructed of wood having a density of 452.0 kg/m3. The surface area of the bottom of the
3. a gun fires a bullet of mass 50 gms. the bullet moves with a velocity of 100m/sec strikes a wooden p
4. weight of a body in earth 9.8 newton. mass will be?????
5. on a 40km bike ride a cyclist rides the first 20km at 20km/h. what is the speed require for the fina
6. Hi, I need help with a momentum question. Here it is: Your spacecraft is travelling forward with
7. A concrete block with a mass of 47.02kg is to be pushed along a level floor. The force needed for co