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PRACTICE QUESTION BANK

আর্কিটেকচার

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1151. MCQPractice set · Question 89

Trajectory-এর x-coordinate R/2-এ y কী?

a.
H
b.
0
c.
2H
d.
R

Correct answer: a

Symmetry-এর কারণে midpoint x=R/2-এ projectile maximum height H পায়।

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1152. MCQPractice set · Question 90

Maximum height H-এর formula-তে sin²θ কেন থাকে?

a.
vertical initial velocity-এর square থেকে
b.
horizontal speed থেকে
c.
range-এর square থেকে
d.
time zero থেকে

Correct answer: a

H=(u sinθ)²/(2g), তাই sin²θ।

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1153. MCQPractice set · Question 91

Range formula-তে sin2θ আসার কারণ কী?

a.
2sinθcosθ identity
b.
sin²θ only
c.
cos²θ only
d.
tanθ identity

Correct answer: a

R=(u cosθ)(2u sinθ/g)=u²(2sinθcosθ)/g।

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1154. MCQPractice set · Question 92

Projectile-এর time of flight কোন component দিয়ে নির্ধারিত হয়?

a.
vertical motion
b.
horizontal motion
c.
mass
d.
horizontal acceleration

Correct answer: a

Ground return condition vertical displacement equation থেকে পাওয়া যায়।

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1155. MCQPractice set · Question 93

Projectile-এর range কোন component ও time-এর product?

a.
horizontal velocity × time of flight
b.
vertical velocity × time
c.
acceleration × time
d.
speed²×time

Correct answer: a

R=u cosθ×T।

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1156. MCQPractice set · Question 94

Projectile-এর maximum height কোন component-এর motion থেকে আসে?

a.
vertical
b.
horizontal
c.
tangential only
d.
radial only

Correct answer: a

Height নির্ধারিত হয় vertical component ও gravity দিয়ে।

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1157. MCQPractice set · Question 95

Projectile-এর horizontal motion কেমন?

a.
uniform
b.
uniformly accelerated
c.
rest
d.
circular

Correct answer: a

Horizontal acceleration zero হওয়ায় horizontal motion uniform।

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1158. MCQPractice set · Question 96

Projectile-এর vertical motion কেমন?

a.
uniformly accelerated
b.
uniform
c.
rest
d.
circular uniform

Correct answer: a

Vertical acceleration −g constant, তাই vertical motion uniformly accelerated।

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1159. MCQPractice set · Question 97

Projectile-এর speed কি পুরো পথে constant?

a.
না, vertical component বদলায়
b.
হ্যাঁ সবসময়
c.
শুধু 45°-এ
d.
শুধু highest point-এ

Correct answer: a

Horizontal component constant হলেও vertical component বদলায়, তাই total speed বদলায়।

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1160. MCQPractice set · Question 98

Projectile-এর speed minimum কোথায়?

a.
highest point
b.
launch point সবসময়
c.
landing point সবসময়
d.
মাঝপথে নিচে

Correct answer: a

Highest point-এ vertical component zero, ফলে speed=u cosθ, minimum।

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