Practice Force and Laws of Motion 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 force, Newton’s laws of motion, inertia, acceleration, momentum and the effect of force on the motion of objects.
The Force and Laws of Motion RRB PYQ collection is useful for candidates preparing for Railway examinations and revising important Physics concepts through previous year questions. Questions from this topic can include both conceptual and numerical problems, helping you understand the application of Newton’s laws and improve your problem-solving skills.
Whether you are preparing for RRB NTPC Force and Laws of Motion PYQ, RRB Group D Force and Laws of Motion PYQ, RRB JE Force and Laws of Motion PYQ, RRB ALP Force and Laws of Motion PYQ, or RRB Technician Force and Laws of Motion PYQ, practice these questions regularly to strengthen your Railway Physics preparation.
121
Which is not an effect of an unbalanced force acting on an object?
RRB Group D
06/12/2018 / Shift-III
2018
✓ Answer:CNo change in speed
The source selects C. A net force necessarily changes velocity, although a force perpendicular to velocity can change direction without changing speed.
122
Which can be an effect of balanced forces acting on an object?
RRB Group D
04/12/2018 / Shift-III
2018
✓ Answer:AChange in shape
Balanced forces give zero net translational acceleration but can deform an object. They do not always change its shape.
123
A constant force acts on an 8 kg object for 2 s and increases its velocity from 4 m/s to 9 m/s. Find the force.
RRB Group D
24/09/2018 / Shift-II
2018
✓ Answer:C20 N
F = 8(9 − 4)/2 = 20 N.
124
Which equation calculates momentum?
RRB Group D
16/11/2018 / Shift-III
2018
✓ Answer:BMomentum = mass × velocity
Momentum equals mass multiplied by velocity.
125
A 10 kg object moves at 2 m/s. Find its momentum.
RRB Group D
26/09/2018 / Shift-II
2018
✓ Answer:B20 kg·m/s
p = mv = 10 × 2 = 20 kg·m/s.
126
Momentum = ______.
RRB Group D
23/10/2018 / Shift-II
2018
✓ Answer:AMass × velocity
Momentum p = mv.
127
Body A of mass 2 kg and body B of mass 3 kg move towards each other at 4 m/s and 2 m/s respectively. During an elastic collision, the impact will be ______.
RRB Group D
22/09/2018 / Shift-I
2018
✓ Answer:DIn the opposite direction
The source selects D. During the collision, the two bodies exert equal and opposite forces on each other. The wording of the question is ambiguous.
128
Linear momentum equals ______.
RRB Group D
05/11/2018 / Shift-III
2018
✓ Answer:BMass × velocity
Linear momentum is the product of mass and velocity.
129
A 40 g bullet is fired horizontally at 180 m/s from a gun of mass 3 kg. Find the gun's recoil velocity.
RRB Group D
08/10/2018 / Shift-III
2018
✓ Answer:C−2.4 m/s
Conservation of momentum gives V = −mv/M = −0.04 × 180/3 = −2.4 m/s.
130
An object has mass 85 kg and velocity 60 m/s. Find its momentum.
RRB Group D
12/12/2018 / Shift-I
2018
✓ Answer:B5100 kg·m/s
p = mv = 85 × 60 = 5100 kg·m/s.
Showing 121 – 130 of 267 MCQ Questions | Page 13 of 27
Start practicing Force and Laws of Motion RRB PYQs with answers and explanations and strengthen your Railway Physics preparation.
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