Homework Statement
Bob heads out into a lake at an angle of 36 degrees, with respect to the shore. If his boat is capable of a speed of 1.7 m/s, how far from land will he be in 7 min and 23 s? Answer in units of m.
Homework Equations
I have no idea what equation would work for this...
ok, i tried it, solved for a and I got .030 m/s^2 = a.
i typed that into my homework answers, and it said it was incorrect (we have multiple times to try it)
and when I do v=at,
3.8=(.030)t,
I get 125.3 seconds...seems a bit too much time. am i doing something wrong?
But then we have two variables, a, and v, how do I solve then? it doesn't work if you manipulate and substitute v =at because then the other variable, t, comes in.
Homework Statement
A hockey puck sliding on a frozen lake comes to rest after 238 m. If its initial velocity is 3.8 m/s what is its acceleration if it is assumed constant? Answer in units of m/s^2
How long is it in motion? What is its speed after traveling 180 m?
Homework Equations
x=xo +...