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Which of the following relation is correct?
ক
Design Strength = Ultimate strength / Partial factor of safety
খ
Design Strength = Ultimate strength + Partial factor of safety
গ
Design Strength = Ultimate strength * Partial factor of safety
ঘ
Design Strength = Ultimate strength – Partial factor of safety
When a ball is thrown vertically upwards, which of the following quantities remains constant during its motion?
ক
Energy
খ
Displacement
গ
Velocity
ঘ
Acceleration
Find the acceleration (in m/s2) produced in a body of mass 4 kg when a force of 24 N is applied on it.
ক
96
খ
6
গ
12
ঘ
48
Why does a sprinter keep running even after crossing the finishing line?
ক
He wants to make sure that he crosses the line
খ
Inertia of rest takes some time to make him stop
গ
Inertia of motion keeps him moving
ঘ
Friction between his shoes and the ground causes him to move beyond the line
Which of the following physical quantities changes or tends to change the state of rest or of uniform motion of a body in a straight line?
ক
Force
খ
Mass
গ
Momentum
ঘ
Inertia
Rocket works on the principle of
ক
Newton's Third Law
খ
Newton's First Law
গ
Newton's Second Law
ঘ
Archimedes Principle
Which of the following is an example of simple harmonic motion?
ক
Earth spinning on its axis
খ
Simple pendulum motion
গ
Ball bouncing on floor
ঘ
Motion of a ceiling fan
What will be the acceleration produced when a force of 21 N is applied on an object of mass 3 kg?
ক
0.007 ms<sup>-2</sup>
খ
0.7 ms<sup>-2</sup>
গ
7 ms<sup>-2</sup>
ঘ
70 ms<sup>-2</sup>
What is the other name of Newton's first law of motion?
ক
Law of momentum
খ
Law of movement
গ
Law of inertia
ঘ
Law of displacement