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Questions

Question (21)

QN003241

Area under velocity–time graph gives

(A) acceleration
(B) displacement
(C) speed
(D) force

Correct Answer: B

Explanation:

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Question (22)

QN003242

Horizontal position–time graph represents

(A) uniform motion
(B) rest
(C) acceleration
(D) variable velocity

Correct Answer: B

Explanation:

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Question (23)

QN003243

Straight inclined position–time graph shows

(A) uniform velocity
(B) zero velocity
(C) changing acceleration
(D) circular motion

Correct Answer: A

Explanation:

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Question (24)

QN003244

Curved position–time graph indicates

(A) uniform motion
(B) non-uniform motion
(C) rest
(D) constant displacement

Correct Answer: B

Explanation:

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Question (25)

QN003245

Initial velocity 8 m/s, acceleration 2 m/s² for 5 s. Final velocity equals

(A) 18 m/s
(B) 20 m/s
(C) 22 m/s
(D) 24 m/s

Correct Answer: A

Explanation:

v = u + at

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Question (26)

QN003246

A vehicle slows from 30 m/s to 0 in 6 s. Distance travelled equals

(A) 60 m
(B) 90 m
(C) 120 m
(D) 180 m

Correct Answer: B

Explanation:

Average velocity × time.

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Question (27)

QN003247

Uniform acceleration means

(A) equal velocity always
(B) equal change in velocity in equal time intervals
(C) zero velocity
(D) decreasing speed

Correct Answer: B

Explanation:

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Question (28)

QN003248

If displacement is zero after motion, distance travelled is

(A) zero
(B) negative
(C) positive
(D) undefined

Correct Answer: C

Explanation:

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Question (29)

QN003249

An object moving with constant speed may still accelerate if

(A) time changes
(B) direction changes
(C) distance increases
(D) mass changes

Correct Answer: B

Explanation:

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Question (30)

QN003250

SI unit of acceleration is

(A) m/s
(B) m/s²
(C) m²/s
(D) N

Correct Answer: B

Explanation:

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