Answer:
a = αR
Then We apply the Newton's second law of motion:
∑ F = ma
F - mg sinθ - f = ma.
F - mg sinθ - μmg cosθ = ma
Using given data we have:
F - 3217 = 470a ........................... (1)
Apply the Newton's law for rotation:
∑τ = I α
FR - (mg sinθ)R = 
then: F - mg sinθ = 3ma / 2.
F - 2774 = 705a .......................... (2)
solving 1 and 2 we get:
F = 4103 N
a = 1.885 m/s²
b) In this case the time is given by:
t = 
it comes from: d = 
starting from rest vo = 0
t = 
= 3.09 s
Explanation:
This graph shows the acceleration of a racehorse taking off from the starting gate. By 27m/sin horse’s speed increase between 4 seconds and 6 seconds?
Answer:
possible answer from edge
Explanation:
After World War II the only coal available to burn residentially, either for cooking or warmth, was of poor quality and contained large amounts of contaminants that made its fumes toxic. So when millions of homes in London burned this low quality coal and the local atmosphere over and around London stagnated, there was nowhere for the fumes to go. This stagnation allowed the toxic coal fumes to build up until they became physically harmful to humans and animals.
Given: Height h = 6 ft or the vertical component "y" this become the initial height, therefore if you want to know the total height of the stone with respect to the ground. you can just add up the two value below.
Initial Velocity Vi = 41 ft/s g = -32.2 ft/s² acting downward
Require: Height h = ?
Formula: y = Vf² - Vi²/2g
y = 0 - (41 ft/s)²/2(-32.2 ft/s²)
y = -1,681 ft²/s²/(-64.4 ft/s²)
y = 26.10 ft
