Spike claims that dimensional analysis shows that the correct expression for change in velocity,
,is
,where m is mass,t is time,and F is the magnitude of force.Carla says that can't be true because the dimensions of force are
)Which one,if either,is correct?
A)Spike,because .
B)Spike,because .
C)Carla,because .
D)Carla,because .
E)Spike,because the dimensions of force are .

Question

Spike claims that dimensional analysis shows that the correct expression for change in velocity, 
,is 
,where m is mass,t is time,and F is the magnitude of force.Carla says that can't be true because the dimensions of force are 
)Which one,if either,is correct?
A)Spike,because . 
B)Spike,because . 
C)Carla,because . 
D)Carla,because . 
E)Spike,because the dimensions of force are .

Quizplus · Accepted Answer

Carla is correct because the dimension of force is M * L / T^2 (mass times length divided by time squared), which is not consistent with the expression provided by Spike.

Spike Claims That Dimensional Analysis Shows That the Correct Expression