Question

A particle starts at a position 2 meters from you and moves past you in 10 seconds to a position 5 meters from you. What is the particle's velocity?

Answer 1

`0.7 \ "m/s"`

Explanation:

Velocity is found by the equation:

`vecv=(vecd)/t`

• `vecd` is the total displacement

• `t` is the time taken

Here: `vecd=5 \ "m"+2 \ "m"=7 \ "m"` (since the particle has moved past you), and `t=10 \ "s"`.

`:.vecv=(7 \ "m")/(10 \ "s")=0.7 \ "m/s"`