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.
491
Find the kinetic energy of a 10 kg bicycle moving at 20 m/s.
RRB Group D
28/09/2018 / Shift-II
2018
✓ Answer:D2000 J
K = (1/2) × 10 × 20² = 2000 J.
492
Which energy conversion occurs as rain falls?
RRB Group D
24/10/2018 / Shift-II
2018
✓ Answer:DPotential energy to kinetic energy
Falling rain converts gravitational potential energy into kinetic energy.
493
Find the kinetic energy of a 10 kg object moving at 6 m/s.
RRB Group D
28/09/2018 / Shift-III
2018
✓ Answer:B180 J
K = (1/2) × 10 × 6² = 180 J.
494
A 14 kg object moves at 5 m/s. Find its kinetic energy.
RRB Group D
11/10/2018 / Shift-II
2018
✓ Answer:D175 J
K = (1/2) × 14 × 5² = 175 J.
495
Which energy increases or decreases with height?
RRB Group D
03/10/2018 / Shift-III
2018
✓ Answer:CPotential energy
U = mgh varies directly with height for fixed mass and g.
496
A 20 kg object moves at 10 m/s. Find its kinetic energy.
RRB Group D
05/10/2018 / Shift-III
2018
✓ Answer:B1000 J
K = (1/2) × 20 × 10² = 1000 J.
497
Which does not have kinetic energy in the stated condition?
RRB Group D
08/10/2018 / Shift-II
2018
✓ Answer:CA raised hammer
A stationary raised hammer has potential energy but no kinetic energy.
498
An object has energy of 1500 J and mass 15 kg. Find its height above the ground.
RRB Group D
02/11/2018 / Shift-I
2018
✓ Answer:A10 m
Using g = 10 m/s², h = 1500/(15 × 10) = 10 m.
499
Find the potential energy of a 20 kg hammer raised 10 m.
RRB Group D
05/10/2018 / Shift-III
2018
✓ Answer:B2000 J
Using g = 10 m/s², U = 20 × 10 × 10 = 2000 J.
500
Which object does not have kinetic energy in the stated condition?
RRB Group D
05/10/2018 / Shift-II
2018
✓ Answer:BA raised hammer
A stationary raised hammer has no kinetic energy.
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