All of the following objects are moving at the same speed. Which one has the greatest kinetic energy?

A.
a bicycle

B.
a motorcycle

C.
a car

D.
a semi tractor-trailer truck

Question

All of the following objects are moving at the same speed. Which one has the greatest kinetic energy? 	
	
 
A.
	a bicycle
	
 
B.
	a motorcycle
	
 
C.
	a car
	
 
D.
	a semi tractor-trailer truck

ookawaiioo · Answer

Kinetic energy (K.E) = 1/2*mass*velocity^2

If they are traveling the same speed, they have the same velocity. 

The heaviest one will have the highest K.E

anonymous · Answer

D reason above