1. You are told that a basketball player spins the ball for 2.5 s with an angular acceleration of 75 rad/s² and starting from rest. a) SET UP • Using the notation 40 for angular displacement in time t, w for angular velocity in time t, wo for the initial angular velocity, and a for the angular acceleration, determine what quantities are known and what quantities are unknown. • Enter a few known quantities in the table below. t= a = Wo = S rad/s2 rad/s

College Physics
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ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
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Chapter10: Rotational Motion And Angular Momentum
Section: Chapter Questions
Problem 4PE: Unreasonable Results You are told that a basketball player spins the ball with an angular...
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1. You are told that a basketball player spins the ball for 2.5 s with an angular acceleration of 75
rad/s² and starting from rest.
a) SET UP
Using the notation 40 for angular displacement in time t, w for angular velocity in time t, wo
for the initial angular velocity, and a for the angular acceleration, determine what
quantities are known and what quantities are unknown.
• Enter a few known quantities in the table below.
●
t=
a =
wo =
X
S
rad/s²
rad/s
Transcribed Image Text:1. You are told that a basketball player spins the ball for 2.5 s with an angular acceleration of 75 rad/s² and starting from rest. a) SET UP Using the notation 40 for angular displacement in time t, w for angular velocity in time t, wo for the initial angular velocity, and a for the angular acceleration, determine what quantities are known and what quantities are unknown. • Enter a few known quantities in the table below. ● t= a = wo = X S rad/s² rad/s
1. Δθ = wt
2. w=w+at
3.
4,w² =
w²+2α(40)
d) Calculate the final angular velocity.
rad/s
W =
X
A0= wot+at²
2
e) Approximately how many revolutions in 2.5 s?
Note: This part is asking for revolutions, not the angular displacement.
revolutions in 2.5 seconds
Transcribed Image Text:1. Δθ = wt 2. w=w+at 3. 4,w² = w²+2α(40) d) Calculate the final angular velocity. rad/s W = X A0= wot+at² 2 e) Approximately how many revolutions in 2.5 s? Note: This part is asking for revolutions, not the angular displacement. revolutions in 2.5 seconds
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