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.
271
Which of the following options represents the equation of work done?
RRB ALP (Stage-II); RRB ALP (Stage-II); RRB Technician Grade-III; RRB Group D
02/05/2025 / Shift-II; 02/05/2025 / Shift-I; 28/12/2024 / Shift-II; 08/10/2018 / Shift-I
2025; 2024; 2018
✓ Answer:BWork done = Force × Displacement
Work equals force multiplied by displacement in the direction of the force: W = F × s.
272
If a ball is thrown upwards, the work done by gravity on the ball will be:
RRB ALP (Stage-II)
02/05/2025 / Shift-II
2025
✓ Answer:CNegative
Gravity acts downward while the displacement is upward, so the work done by gravity is negative.
273
A force of 6 N displaces a body 2 metres in the direction of the force. Find the work done.
RRB ALP (Stage-II); RRB ALP (Stage-II)
02/05/2025 / Shift-II; 06/05/2025 / Shift-II
2025
✓ Answer:A12 J
W = F × s = 6 × 2 = 12 J.
274
A porter lifts a 10 kg object from the ground and places it 2.5 metres above the ground on his head. Calculate the work done on the object.
RRB ALP (Stage-II)
06/05/2025 / Shift-II
2025
✓ Answer:A250 J
Using g = 10 m/s², W = mgh = 10 × 10 × 2.5 = 250 J.
275
Which statement is correct regarding negative work?
RRB ALP (Stage-II); RRB Technician Grade-III; RRB Group D
02/05/2025 / Shift-I; 26/12/2024 / Shift-II; 03/12/2018 / Shift-III
2025; 2024; 2018
✓ Answer:AWhen force acts opposite to displacement, work done is negative.
W = Fs cos θ. Opposite force and displacement give θ = 180° and negative work.
276
A body's displacement is perpendicular to the applied force. What is the work done?