V = 8 -9t if t<1
V = 8 - 2t if t > 2
Find the value of V (m/s) when t = 3.
10 m/s
2 m/s
3 m/s
4 m/s
V = 8 -9t if t<1 ...(i)
v= 8 - 2t if t > 2 ... (ii)
Given t = 3
since t > 2, we consider equation (ii)
V = 8 - 2t
= 8 - 2(3)
= 8 - 6
= 2
Therefore, V = 2 m/s
V = 3 + 9t if t < 9
V= 8 - 2t if t =10
Find the value of v (m/s) when t = 10
V = 3 + 9t if t<9
V = 1 - 9t if t<9
V= 5 - 2t if t >9
Find the value of v (m/s) when t = 5
V= 5 - 2t if t =10
V = 1 - 4t if t<4
V= 5 - 2t if t >6
Find the value of v (m/s) when t = 7