15-10-2019
Physics

contestada

A dog has a speed of 7 m/s and a mass of 45 kg. What is the dog's kinetic
energy?
O A. 157.5 J
O B. 2205.0J
O C. 1102.5 J
O D. 550.5 J
SUBMIT

Respuesta :

henitadesse88 henitadesse88

22-10-2019

Answer:

C

Explanation:

K.E= 1/2(mv^2)

K.E=1/2(45kg•(7m/s)^2)

K.E= 1/2(45kg•49m^2/s^2)

K.E= 1/2(2205J)

K.E= 1102.5

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