- #1
Turkishking
Member advised to use the homework template for posts in the homework sections of PF.
A bicylist is finishing his repair of a flat tire when a friend rides by a constant speed of 3.5 m/s. Two seconds later the bicylist hops on his bike and accelerates 2.4 m/s^2 until he catches his friend.
a) How much time does it take until he catches his friend?
What I did was:
v=v0 + at
solved for T..
V-V0/a = t
3.5 - 0/2.4 = 1.6s
(b) how far has he traveled?
Can I use D=VT? or should I use the formula x=x0 + 1/2(V0 + V)t?
I'm confused when I can use D=vt..
a) How much time does it take until he catches his friend?
What I did was:
v=v0 + at
solved for T..
V-V0/a = t
3.5 - 0/2.4 = 1.6s
(b) how far has he traveled?
Can I use D=VT? or should I use the formula x=x0 + 1/2(V0 + V)t?
I'm confused when I can use D=vt..