Step #1
Set up a table of the runner's names and how long it takes them to run 100 meters.
Chart needed to track results in conducted experiment
Step #2
Lay out the measuring tape to equal the length of 100 meters.
Step #3
Shoot the starter pistol and began to time each runner individually, to get the correct times for each one.
Step #4
<span>After getting all the times for each runner, divide each time t by the distance of 100 meters, to find the rate of velocity. Then divide the change in velocity by time again to find </span>
a
Uniform Acceleration
Uniform acceleration will occur during the whole race-- with the hope that every runner runs at a constant rate of velocity.
You would calculate this by dividing the time by the distance traveled, or
t
<span>/100m.</span>
Answer:
38.02 degrees
Explanation:
sin(55)/1.33=0.6159
sin^-1(0.6159)=38.02 degrees
Answer:
The angular velocity is 0.40090415 rad/sec.
Explanation:
Given that,
Height = 30 feet
Rotating rate =55,145 rev/day
We need to calculate the angular velocity
So,
Hence, The angular velocity is 0.40090415 rad/sec.
D59e96ohdhm
fjflyhdhodyp
gjgjflfulf
type to clydydoyf.
Answer:
7) 5 m/s
8) 1.5 m/s
9) -9 m/s^2
10) 2.2 m/s
11) 5 s
Explanation:
These problems make use of the relations:
a = ∆v/∆t
d = 1/2at^2 . . . . acceleration to/from rest
v^2 = 2ad . . . . . acceleration to/from rest
In each case, choose the formula appropriate to the question, fill in the given values, and solve for what's missing.
__
7) v^2 = 2ad
v = √(2(9.8 m/s^2)(1.5 m)) = √(29.4 m^2/s^2) ≈ 5 m/s
__
8) d = 1/2at^2
a = 2d/t^2 = 2(75 m)/(10 s)^2 = 1.5 m/s^2
__
9) a = ∆v/∆t
a = (-45 m/s)/(5 s) = -9 m/s^2
__
10) a = ∆v/∆t
∆v = a·∆t = (0.09 m/s^2)(10 s) = 0.9 m/s
Vivian's final speed is the initial speed plus the change in speed:
1.3 m/s + 0.9 m/s = 2.2 m/s
__
11) a = ∆v/∆t
∆t = ∆v/a = (0.50 cm/s -0.75 cm/s)/(-0.05 cm/s^2) = -.25/-.05 s = 5 s