Name: _________________________

Paper Rocket Project PRACTICE PROBLEMS

Math Science 9

Suppose you have recorded the following data.

Record the length of the launch tube:                                               __30 cm_______

Rocket #1:  Launched at an Angle:

Record the launch angle:                                                           __45 degrees___

Record the distance that the rocket flew in meters:                     __60 m_______

Record the time that the rocket was in the air:                __9.2 seconds__

Mass of Rocket in kilograms:                                        __.332 kg______

Rocket #2:  Launched Straight Up:

Record the clinometer angle:                                                     ___75 degrees___

Record your distance in meters from the rocket launcher:           ___15 m_______

Record the time that the rocket was in the air:                ___8.1 seconds__

Mass of Rocket in kilograms                                                     __.332 kg______

Analysis:

Rocket #1:  Launched at an Angle:

1. Use trigonometry to compute the maximum height of the rocket.  Show your work. Draw a picture of the situation  (3 points).

Analysis:

Rocket #2:  Launched Straight Up:

1. Use trigonometry to compute the maximum height of the rocket.  Show your work.  Draw a picture of the situation (3 points).

2. Find the time that the rocket was in the air. Show your work (3 points).

3. Compare your answer to #2 with your data using percent difference (3 points).

4. Find the initial velocity of the rocket.  Show your work (3 points).

5. a.  Find the final velocity of the rocket just as it leaves the launch tube (3 points).

b. Find the initial velocity of the rocket while it is on the launch tube (3 points).

c.  Use the length of the launch tube as Dx.  Find the time that the rocket was on the launch tube.

    (3 points)

d.  Find the acceleration of the rocket while it was on the launch tube (3 points).

e.  Find the force on the rocket at the time of liftoff (2 points).