Author Question: Can work be done on a system if there is no motion? A) Yes, since motion is only relative. B) ... (Read 47 times)

dollx · **on:** Jul 29, 2018

Can work be done on a system if there is no motion?

A) Yes, since motion is only relative.
B) Yes, if the sum of the external forces is zero.
C) Yes, if an external force is acting on the system.
D) No, since a system which is not moving has no energy.
E) No, since work involves a non-zero displacement.

Question 2

Dimensional analysis can tell you whether an equation is physically correct.

Indicate whether the statement is true or false