Pakistan MCQs

Use v=u+at.
V=5+2×6 = 17 m/s.

Acceleration is change in velocity divided by time.
(5-20)/3 = -5 m/s².

Use s=ut+½at² with u=0.
S=½×2×25 = 25 m.

Weight depends on gravitational field strength.
Mass remains constant while weight may change with location.

A surface exerts a normal force on an object in contact with it.
Its magnitude is not always equal to weight.

Friction acts tangentially at a contact surface.
It may be static or kinetic.

Average velocity is a vector based on net displacement.
A round trip can have zero average velocity.

Slope gives change in displacement per unit time.
That is the definition of velocity.

Slope gives change in velocity per unit time.
That is acceleration.

Integrating velocity over time gives displacement.
Areas below the time axis count as negative displacement.

Uniform acceleration means velocity changes by equal amounts in equal times.
The standard kinematic equations apply.

Inertia is related to mass.
Greater mass means greater resistance to acceleration.