A flea jumps by exerting a force of 1.20 ×10^-5 N straight down on the ground. A breeze blowing

step 1 Let's write down the givens. We have f1. F1 equals 1 .2 times 10 to the power minus 5 Newton, mi

A flea jumps by exerting a force of 1.20 ×10^-5 N straight...

A flea jumps by exerting a force of $1.20 \times 10^{-5} \mathrm{N}$ straight down on the ground. A breeze blowing on the flea parallel to the ground exerts a force of $0.500 \times 10^{-6} \mathrm{N}$ on the flea while the flea is still in contact with the ground. Find the direction and magnitude of the acceleration of the flea if its mass is $6.00 \times 10^{-7} \mathrm{kg} .$ Do not neglect the gravitational force.

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Key Concepts

Newton's Second Law of Motion

Newton's second law states that the net force acting on an object is equal to the mass of the object multiplied by its acceleration (F_net = m × a). This law is fundamental in dynamics and is used to determine an object's acceleration when the forces acting on it are known.

Vector Addition of Forces

When multiple forces act on an object, they must be combined using vector addition to determine the net force. This involves considering both the magnitude and direction of each force, ensuring that forces acting in different directions are appropriately accounted for in the overall analysis.

Gravitational Force

Gravitational force, or weight, is the force exerted on an object due to gravity, typically calculated as the product of its mass and the acceleration due to gravity. This force is a crucial component in dynamics problems, especially when considering motion in vertical directions.

Acceleration (Magnitude and Direction)

Acceleration is the rate of change of velocity and results from the net force acting on an object. Determining both its magnitude and direction involves using the net force obtained from vector addition and then applying Newton's second law to find how the object will speed up, slow down, or change direction.

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