Respuesta :

x111flowers
0.5mv^2
0.5 times 40 times 3^2
The kinetic energy is 180
harshapuranik179

Answer:

Mass = 40 kg

Velocity = 3m/s

Kinetic energy = mv^2/2

= 40 x 3 x 3/2

= 180 J

Hope this helps!