The graph shows the time versus distance data gathered for three different RipStik runs A, B, and C.
The first three questions are matching. Use the letters at the end of the lines on the xy scattergraph.
_____ RipStik moving at a constant speed, no acceleration.
_____ RipStik moving faster at a constant rate of acceleration.
_____ RipStik moving with a non-constant acceleration .
_______ ___________ Determine the speed of RipStik run C.
_______ ___________ A student measures a bar of soap with a length of 7.7 cm, a width of 5.0 cm, and a height of 2.2 cm. The soap has a mass of 72 grams. What is the density of the soap?
______________ Will the soap above floatorsink?
_______ ___________ Calculate your speed if you walk 36.8 meters in 18.4 seconds
_______ ___________ At the walking speed calculated above, how long in seconds for you to walk the 10000 meters from the Palikir site to Kolonia?
______ _____________ The equation on a graph of a moving RipStik with time in seconds on the x-axis and distance in meters on the y-axis is y = 1.43x. What is the speed of the RipStik?
RipStik Acceleration Data
pillar
time (s)
dist (m)
zero
0
0
one
7.78
4.6
two
13.16
9.2
three
16.8
13.8
four
19.37
18.4
five
21.91
23.0
six
23.62
27.6
_______ ___________ Calculate the speed of the RipStik between the pillars five and six.
_______ ___________ Using the starting speed of 0 m/s at pillar zero, the above speed between pillar five and six, and the time of 23.62 seconds, determine the acceleration of the RipStik.
____________ Does a RipStik necessarily accelerate at a constant rate of acceleration?
Why not?
A ball is thrown along an arc as seen in the diagram. The vertex is at (0, 100), the roots are at (-50,0) and (50, 0).
__________ ________
Use the values in the diagram and the equation
to determine the height of the ball at x = 25 centimeters.
__________ ______
Where g = 980 cm/s², what is the duration in seconds for a marble to fall from a height of 1960 cm?
mass m = (density ρ)×(Vol V ) Vol = length×width×height