PLEASE HELP (this is 8th grade physics)

If a large truck and a small car are moving at the same speed, which has the greater kinetic energy? Why?

Question

PLEASE HELP (this is 8th grade physics)

If a large truck and a small car are moving at the same speed, which has the greater kinetic energy?  Why?

anonymous · Answer

http://wiki.answers.com/Q/If_a_small_car_and_a_large_truck_are_traveling_at_the_same_speed_which_has_more_kinetic_energy?#slide=1 I hope this helps.

anonymous · Answer

Also, can you help me? Im in 8th grade physics also. I'll tag you in my question

anonymous · Answer

i will try to answer, what the question?

anonymous · Answer

I already tagged you but its-
What determines the atomic mass of an element?	
 
 A.
the sum of the neutrons and the electrons
 
 B.
the sum of the protons and the neutrons
 
 C.
the sum of the protons and electrons
 
 D.
the sum of the ions and isotopes

anonymous · Answer

i think its B

anonymous · Answer

I do too, Ill just say that. Thanks for the help!

anonymous · Answer

no problem, im glad i could help :)