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কম্পিউটার সায়েন্স এন্ড ইঞ্জিনিয়ারিং

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1281. MCQPractice set · Question 84

Constant angular acceleration-এ time eliminate করলে equation কী?

a.
ω²=ω₀²+2αθ
b.
ω=ω₀+αθ
c.
θ=ω²t
d.
ω²=α/θ

Correct answer: a

Linear v²=u²+2as-এর rotational analogue।

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1282. MCQPractice set · Question 85

ω₀=2 rad/s, α=3 rad/s², t=4 s হলে ω কত?

a.
8 rad/s
b.
12 rad/s
c.
14 rad/s
d.
24 rad/s

Correct answer: c

ω=ω₀+αt=2+12=14 rad/s।

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1283. MCQPractice set · Question 86

ω₀=0, α=2 rad/s², t=3 s হলে angular displacement কত?

a.
3 rad
b.
6 rad
c.
9 rad
d.
18 rad

Correct answer: c

θ=½αt²=½×2×9=9 rad।

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1284. MCQPractice set · Question 87

ω₀=2, α=3, t=4 হলে θ কত?

a.
8 rad
b.
16 rad
c.
32 rad
d.
40 rad

Correct answer: c

θ=ω₀t+½αt²=8+24=32 rad।

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1285. MCQPractice set · Question 88

একটি wheel rest থেকে α=4 rad/s²-এ 2 s ঘুরলে angular velocity কত?

a.
2 rad/s
b.
4 rad/s
c.
8 rad/s
d.
16 rad/s

Correct answer: c

ω=αt=4×2=8 rad/s।

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1286. MCQPractice set · Question 89

একই wheel-এর angular displacement কত?

a.
4 rad
b.
8 rad
c.
16 rad
d.
32 rad

Correct answer: a

θ=½αt²=½×4×4=8 rad; তাই সঠিক option b।

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1287. MCQPractice set · Question 90

ω₀=0, α=4 rad/s², t=2 s হলে θ কত?

a.
4 rad
b.
8 rad
c.
16 rad
d.
32 rad

Correct answer: b

θ=½×4×2²=8 rad।

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1288. MCQPractice set · Question 91

Angular velocity constant হলে angular acceleration কত?

a.
0
b.
ω
c.
ω²
d.
rω

Correct answer: a

ω অপরিবর্তিত হলে α=dω/dt=0।

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1289. MCQPractice set · Question 92

Angular displacement constant হলে angular velocity কী?

a.
zero average over interval
b.
always maximum
c.
g
d.
undefined

Correct answer: a

নির্দিষ্ট interval-এ net angular displacement zero হলে average angular velocity zero; body ঘুরে ফিরে আসতেও পারে।

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1290. MCQPractice set · Question 93

Linear acceleration-এর tangential অংশ কোন angular quantity-এর সঙ্গে যুক্ত?

a.
angular acceleration
b.
angular displacement only
c.
period only
d.
frequency only

Correct answer: a

aₜ=rα।

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