Pasco Scientific ME-6825, Инструкция по эксплуатации и руководство по экспериментам

Страница: 12 / 42

Mini Launcher 012-05479A
8
Procedure
Part A: Determining the Initial Velocity of the Ball
➀
Put the ball into the Mini Launcher and cock it to the long range position. Fire one shot to
locate where the ball hits the floor. At this position, tape a piece of white paper to the floor.
Place a piece of carbon paper (carbon-side down) on top of this paper and tape it down. When
the ball hits the floor, it will leave a mark on the white paper.
➁
Fire about ten shots.
➂
Measure the vertical distance from the bottom of the ball as it leaves the barrel (this position is
marked on the side of the barrel) to the floor. Record this distance in Table 1.1.
➃
Use a plumb bob to find the point on the floor that is directly beneath the release point on the
barrel. Measure the horizontal distance along the floor from the release point to the leading
edge of the paper. Record in Table 1.1.
➄
Measure from the leading edge of the paper to each of the ten dots and record these distances
in Table 1.1.
➅
Find the average of the ten distances and record the value in Table 1.1.
➆
Using the vertical distance and the average horizontal distance, calculate the time of flight and
the initial velocity of the ball. Record in Table 1.1.
➇
Calculate the Total Average Distance. Record in Table 1.1.
(Total Average Distance = Distance to paper edge + Average Distance)
Trial Number Distance
1
2
3
4
5
6
7
8
9
10
Average Distance
Total Average Distance
Vertical distance = _____________ Horizontal distance to paper edge = ____________
Calculated time of flight = _________ Initial velocity = _______________
Table 1.1 Determining the Initial Velocity