Practice Gravitation 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 question set covers important concepts of gravitation that are useful for RRB Physics preparation.
The questions cover important concepts such as Newton’s law of gravitation, gravitational force, acceleration due to gravity, variation of gravity, mass and weight, gravity and motion under gravity, satellite motion, escape velocity and related numerical and conceptual questions.
Gravitation RRB PYQ questions are useful for candidates preparing for Gravitation RRB NTPC PYQ, Gravitation RRB Group D PYQ, Gravitation RRB JE PYQ, Gravitation RRB ALP PYQ and Gravitation RRB Technician PYQ. Solve the questions, check the solutions, and strengthen your understanding of important concepts frequently relevant to Railway exams.
Start practicing Gravitation RRB PYQs and improve your Physics preparation for upcoming Railway examinations.
81
A ball is thrown upward at 25 m/s. How long does it take to reach its highest point? Take g = 10 m/s².
RRB Group-D
01/10/2018 / Shift I
2018
✓ Answer:B2.5 s
At the top v = 0, so t = u/g = 25/10 = 2.5 s.
82
A planet has half Earth's mass and half Earth's radius. What is its surface gravity?
RRB ALP & Technician
20/08/2018 / Shift I
2018
✓ Answer:D2g
g'/g = (1/2)/(1/2)² = 2.
83
The point at which the entire weight of an object may be considered to act is its:
RRB Group-D
18/09/2018 / Shift I
2018
✓ Answer:CCentre of gravity
The centre of gravity is the point through which the resultant weight acts.
84
A planet has twice Earth's mass and twice Earth's radius. Its surface gravity is ng. What is n?
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