Very Short Question and Answers - Second Law of Motion

Newton's Second Law of Motion states that the force acting on an object is equal to the mass of the object multiplied by its acceleration (F = ma).

The formula is F = ma, where F is the force applied, m is the mass of the object, and a is the acceleration.

According to Newton's Second Law, for a given force, an increase in mass will result in a decrease in acceleration.

Using the formula F = ma, the acceleration a = F/m = 10 N / 2 kg = 5 m/s².

The unit of force in the SI system is the Newton (N).

Force is directly proportional to acceleration and inversely proportional to mass.

If the net force is zero, the acceleration of the object is also zero, indicating that the object is either at rest or moving with a constant velocity.

Yes, Newton's Second Law can be applied to both linear and translational motion.

To increase acceleration, we can either increase the force applied to the object or decrease its mass.

Friction is a force that opposes motion and affects the net force acting on an object, thereby influencing its acceleration.

When a car speeds up, a net forward force is applied, resulting in acceleration according to F = ma.

An example is pushing a shopping cart; the harder you push (increasing force), the faster it accelerates.

Doubling the force will double the acceleration if the mass remains constant.

When force is applied at an angle, only the component of the force in the direction of motion contributes to acceleration.

In sports, athletes use force to accelerate their bodies or equipment, demonstrating F = ma through their actions.

An inertial frame of

If the mass is tripled while keeping the force constant, the acceleration will be one-third of its original value.

In non-inertial frames, fictitious forces need to be considered; hence, Newton's Second Law can appear modified.

Net force is the vector sum of all individual forces acting on an object and determines its acceleration.

No, if a net force is acting on an object, it will change its velocity; a constant velocity implies zero net force.