# What is the free fall test?

## What is the free fall test?

The drop test or free fall test is one of the most applied tests in the industry of transport simulation and packaging optimization. This test allows us to know how a vertical drop can affect the integrity of the packaging and the goods inside.

### What is the purpose of drop test?

A drop test is a test designed to examine the structural integrity of a product. Drop tests usually involve an object being dropped from a predefined height onto a second object or surface. The object being tested can be either the dropped object or the object/surface that an object is being dropped on to.

What is drop test method?

During a drop test for a product or packaging, NTS equipment creates free fall and sudden impact conditions from different heights and at various angles of impact. The item must withstand the specified conditions and undergoes repeated testing until a fault is exposed.

What is free falling?

An object that is moving only because of the action of gravity is said to be free falling and its motion is described by Newton’s second law of motion. The acceleration is constant and equal to the gravitational acceleration g which is 9.8 meters per square second at sea level on the Earth.

## What is a positive drop arm test?

It is a positive test if there is a sudden dropping of the arm or weakness in maintaining arm position during the eccentric part of abduction, there may also be pain present while lowering the arm, suggesting a full thickness tear to the supraspinatus.

### How fast is a free fall?

The speed achieved by a human body in free fall is conditioned of two factors, body weight and body orientation. In a stable, belly to earth position, terminal velocity of the human body is about 200 km/h (about 120 mph).

Is there acceleration in free fall?

Why is acceleration constant in free fall?

Freefall is a special case of motion with constant acceleration, because acceleration due to gravity is always constant and downward. Since gravity pulls the object toward the earth with a constant acceleration g, the magnitude of velocity decreases as the ball approaches maximum height.