Respuesta :

Kinetic Energy = 1/2×m×v²
50000 = 1/2×1000×v²
v = √100
v = 10 m/s
fc808

Answer:

½mv²= KE  

½(1000)?²= 50000

500*?²= 50000

500           500

? ²=100

Square root  

?= 10

10 m/s is you answer