The velocity of the source is positive if the source is ______________. Note that this equation may not use the sign convention you are accustomed to….

/in /by

The velocity of the source is positive if the source is ______________. Note that this equation may not use the sign convention you are accustomed to. Think about the physical situation before answering.

"Get 15% discount on your first 3 orders with us"
Use the following coupon
FIRST15

Order Now