A particle has velocity v=at+b m,s-1, where a,b are constants and t 0 is in seconds. Its displacemen

Question

A particle has velocity v=at+b m,s-1, where a,b are constants and t 0 is in seconds. Its displacement is 3 m initially, 6 m at t=1, and 5 m at t=2. Find its velocity function and when it first reaches the origin.

Accepted Answer

$v=5-4t\ \mathrm{m\,s^{-1}}$; first reaches the origin at $3$ s.

Position data determining velocity

Position data determining velocity

Solution:

Solution locked