Chapter 2: Kinematics, Laws of Motion & Non-Inertial Frames (Set-3)

A body of mass m experiences zero net force. According to Newton’s laws, its motion is:

If momentum p changes at a rate dp/dt, then dp/dt equals:

The reaction force of Earth on a falling ball acts:

A block slides on a rough horizontal surface at constant speed. The applied force equals:

For an object on an incline with friction, equilibrium occurs when:

In rocket propulsion, the forward thrust is due to:

Two blocks connected by a string move on a frictionless surface when pulled. The tension in the string is:

A 20 N force acts on 4 kg mass. Resulting acceleration is:

A body of weight 100 N is in an elevator accelerating downward at 4 m/s². Apparent weight is:

A frame moving at constant velocity relative to an inertial frame is:

If a frame accelerates at a, the pseudo force on mass m is:

A passenger in a bus turning left feels pushed to the right because of:

Coriolis force depends on:

Coriolis force acts perpendicular to:

A Foucault pendulum demonstrates:

At the equator, Coriolis force magnitude is:

At the poles, Coriolis force is:

A pendulum in a freely falling elevator has time period:

A pseudo force is introduced because Newton’s laws fail in:

For an observer in a rotating frame, the centrifugal force magnitude is:

A car accelerating forward makes a hanging bob tilt:

Magnitude of Coriolis acceleration is:

A person walking east at speed v on Earth will experience Coriolis deflection:

A train moves with constant acceleration. A ball dropped inside appears to:

A 5 kg block is pushed with horizontal force 25 N. If acceleration is 3 m/s², friction =

For circular motion with frequency f, angular speed is:

A rotating rod has point at distance r from center. Its centripetal acceleration is proportional to:

In an inertial frame, Newton’s laws hold because:

A constant force acts on a body. The momentum changes:

A block in a lift accelerating upward experiences:

A circular loop of air flow in Northern Hemisphere turns:

In 2D motion, if ax = 0 and ay ≠ 0 then:

A ball thrown inside a bus moving with constant velocity:

A mass is tied to a string and whirled in a vertical circle. Minimum speed at top is:

For motion under the influence of gravity, acceleration is:

A projectile launched at angle θ and (90° − θ) have:

A mass m in a frame accelerating horizontally with a experiences pseudo force:

On rotating Earth, the centrifugal force is maximum at:

A pendulum’s rotation relative to Earth is due to:

A body is in circular motion at constant speed. Work done by centripetal force is:

If net force on a system is zero, momentum is:

Kinetic friction is usually:

Motion of water draining in a sink tends to rotate due to:

In projectile motion, vertical velocity becomes zero at:

For two masses connected by light inextensible string over smooth pulley:

Mass times acceleration equals:

A rotating frame observer sees straight-line motion in inertial frame as:

In Northern Hemisphere, trade winds are deflected:

Centrifugal force is:

In an elevator descending with acceleration a, apparent weight is: