Self-Check por Learning A truck mass 8000 kg and a car a mass 1000 kg are travelling at the same velocity. Which one has greater kinetic energy ? Why?

Question

asked Jan 1, 2021 152k views

1 Answer

Jacknagel · Answer 1 · 2021-01-06T10:23:55+0000

Answer:

K.E of truck > K.E of car

Step-by-step explanation:

Mass of the truck = 8000Kg

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

K.E =
$(1)/(2)*8000*v\\ 4000v$

Mass of the car = 1000 Kg

K.E of the car =
$(1)/(2)*1000*v\\ 500v$

Therefore Kinetic energy of the truck is greater than that of the car