Phys 11 Assignment #3

Solve the following problems in an orderly manner. Follow the Problem-Solving strategy included in the first Fact Sheet. (Should have diagram with coordinate system shown)
1. An airport runway is 1,000 m long. An airplane must attain a speed of 66 m/s to take off. (a) If the average speed of the airplane down the runway is 33 m/s, for what length of time is the plane on the runway? (b) What is the acceleration of the plane?
2. A stone that is initially at rest is dropped from the top of a building. It falls for 5.0 s before hitting the ground. How tall is the building?
3. The unofficial record for a single jump by a frog was set by a South African sharp-nosed frog that leaped 5 m when being retrieved for placement in its container. If this frog left the ground at an angle of 40 degrees above the ground, what was its initial speed?