A bicyclist is finishing his repair of a flat tire when a friend rides by with a constant speed of 3.5m/s. Two seconds later the bicylicts hops on his bike and accelerates at 2.4m/s^2 until he catches his friend. (a) How much time does it take until he catches his friend? (b) How far has he...

I am having trouble answering this problem. Please offer any suggestion. There are several parts to be answered: 1) An object moves along the x axis according to the equation x(t) = (3.90t2 - 2.00t + 3.00) m. a) Determine the instantaneous speed at t = 1.60 s and at t = 3.10 s. b)...

I have tried to solve these but with no luck.:confused: 1). Find the area of the following triangles: (Use Logarithms) a. a=12.7, b=21.5, and c=28.6. b. c=426, A=45°48'36", and B=61°2'13" c. An isosceles triangle in which each of the equal sides is 14.72 in.and the vertex...

I need to know how to calculate force transferred from the perpendicular to horizontal assuming zero friction. Example: 10 pounds of verticle force applied to a 30 degree plane will move the plane horizontally with how much force? Or to put it another way, how much force is lost in the example, and...

I need help with this film, in this time were several army pilots and crashed their plane but all of them survived apparently. Then all of them noticed that they had buried under the plane and they were just a spirits and only when somebody find their bodies, they will be able to disappear at the...