Question

A gymnast with mass 50kg suspends herself from lower end of a hanging rope, upper end of the rope is attached to the ceiling. What is the weight of gymnast? Which of the Newton’s law related to your calculation? if gymnast fall with an acceleration of 2m/s2 , what is the force on the rope?

Answer 1

Answer:

I. Weight = 490 Newton

II. Newton's Second Law of Motion

III. Force = 100 Newton

Explanation:

Given the following data;

Mass = 50 kg

Acceleration = 2 m/s²

I. To find the weight of the gymnast;

Weight = mass * acceleration due to gravity

We know that acceleration due to gravity is equal to 9.8 m/s².

Weight = 50 * 9.8

Weight = 490 Newton

II. Newton's Second Law of Motion states that the acceleration of a physical object is directly proportional to the net force acting on the physical object and inversely proportional to its mass.

Mathematically, it is given by the formula;

Force = mass * acceleration

$F = ma$

III. To find the force, we would use the following formula;

$F = ma$

$F = 50 * 2$

Force = 100 Newton