Impulse-Momentum

Impulse is defined as the change in momentum of an object when a force is applied over a period of time. It is equal to the product of the average force and the time duration over which the force acts.

Momentum (p) is calculated using the formula: p = m * v, where m is mass and v is velocity.

74.4 kg

An object at rest has a momentum of 0 kg m/s because momentum is the product of mass and velocity, and velocity is zero.

Impulse is equal to the change in momentum of an object. This relationship is expressed as: Impulse = Δp = p_final - p_initial.

Applying a force over a longer time increases the impulse, resulting in a greater change in momentum.

The force of impact is greater against the wall because the wall provides a harder surface compared to the bed sheet.

The force of impact is the same for both the bug and the truck due to Newton's third law of motion.

The impulse-momentum theorem states that the impulse experienced by an object is equal to the change in its momentum, which helps in analyzing collisions and impacts.

The unit of impulse is Newton-seconds (Ns) or kg m/s.