Mechanics RRB PYQ – Physics Previous Year Questions
Practice Mechanics RRB PYQ questions from Railway examinations, including RRB NTPC PYQ, RRB Group D PYQ, RRB JE PYQ, RRB ALP PYQ and RRB Technician PYQ. This topic-wise Physics question set covers important concepts related to work, power, energy, mass, force, Newton’s laws of motion, momentum, distance, displacement, speed, velocity, acceleration, equations of motion, friction and motion, helping you revise essential Physics concepts for RRB examinations.
Each question includes the correct answer and an explanation to help you understand the concept, strengthen your Physics fundamentals, and revise important Mechanics topics for RRB Railway examinations.
Start practicing Mechanics RRB PYQs and strengthen your Physics preparation.
751
An object is thrown upward, reaches 100 m, and returns to the thrower. Which statement is correct?
RRB Group D
10/12/2018 / Shift-III
2018
✓ Answer:DIts net displacement is zero.
The object returns to its starting point, so net displacement is zero; distance travelled is 200 m.
752
An object covers unequal distances in equal time intervals. This is called ______.
RRB Group D
30/10/2018 / Shift-III
2018
✓ Answer:ANonuniform speed
Unequal distances in equal time intervals indicate nonuniform speed.
753
If an object's position changes continuously with time relative to an observer, ______.
RRB Group D
31/10/2018 / Shift-III
2018
✓ Answer:BIt is in motion.
A change of position with time relative to a reference frame defines motion.
754
Motion in a specified direction is described by ______.
RRB Group D
01/11/2018 / Shift-II
2018
✓ Answer:CVelocity
Velocity is speed in a specified direction. The source repeats “speed” in options A and D.
755
Which statement is true for a car moving with constant acceleration on a straight, level road?
RRB NTPC (Stage-I)
19/01/2017 / Shift-III
2017
✓ Answer:DIts velocity changes continuously.
With constant nonzero acceleration, velocity changes by equal amounts in equal time intervals.
756
A car accelerates uniformly from 18 km/h to 72 km/h in 5 s. Find its acceleration.
RRB Group D
27/09/2018 / Shift-I
2018
✓ Answer:A3 m/s²
a = (20 − 5)/5 = 3 m/s².
757
When an object moves at constant speed, what is its acceleration?
RRB Group D
01/10/2018 / Shift-II
2018
✓ Answer:CZero
The source assumes straight-line motion with constant velocity. Constant speed alone does not imply zero acceleration if direction changes.
758
A freely falling object's motion is an example of ______.
RRB Group D
25/09/2018 / Shift-III
2018
✓ Answer:CUniformly accelerated motion
Near Earth's surface and neglecting air resistance, free fall has approximately constant acceleration g.
759
A car's velocity increases uniformly from 18 km/h to 36 km/h in 5 s. Find its acceleration.
RRB Group D
04/10/2018 / Shift-I
2018
✓ Answer:B1 m/s²
18 km/h = 5 m/s and 36 km/h = 10 m/s. a = (10 − 5)/5 = 1 m/s².
760
For maximum horizontal range, what should the angle of projection be?
RRB Group D
16/11/2018 / Shift-III
2018
✓ Answer:D45°
For launch and landing at the same height without air resistance, R = u²sin(2θ)/g, maximized at θ = 45°.
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