# How do you calculate your weight and height?

## How do you calculate your weight and height?

Body Mass Index is a simple calculation using a person’s height and weight. The formula is BMI = kg/m2 where kg is a person’s weight in kilograms and m2 is their height in metres squared. A BMI of 25.0 or more is overweight, while the healthy range is 18.5 to 24.9. BMI applies to most adults 18-65 years.

## How do you calculate upward force?

So the upward force exerted by the air on an object falling down or moving up is equal to the weight of the air displaced by the object . Take the net downward acceleration. Subtract it from gravitational acceleration (9.8 m/s^2) The difference is the upward force on the object generated by air resistance.

How is human weight measured?

Human body weight refers to a person’s mass or weight. Body weight is measured in kilograms, a measure of mass, throughout the world in countries that use the Metric system, although in some countries such as the United States it is measured in pounds, or as in the United Kingdom, stones and pounds.

What is a good weight for a 5 4 female?

Height and Weight Chart

Height Weight
5′ 2″ 104 to 135 lbs. 136 to 163 lbs.
5′ 3″ 107 to 140 lbs. 141 to 168 lbs.
5′ 4″ 110 to 144 lbs. 145 to 173 lbs.
5′ 5″ 114 to 149 lbs. 150 to 179 lbs.

### What is the basic unit of weight?

Units of Mass (Weight) The basic unit of mass or weight in the metric system is the gram. The most frequently used units of mass or weight used in the Canadian food industry are the gram and kilogram.

### What is the basic unit of time?

second

Is a kilo 1000?

Kilo is a decimal unit prefix in the metric system denoting multiplication by one thousand (103). It is used in the International System of Units, where it has the symbol k, in lower case. The prefix kilo is derived from the Greek word χίλιοι (chilioi), meaning “thousand”.

How do you calculate the normal force of a slope?

1. The normal force of an object placed on a sloping surface is always perpendicular to the surface.
2. mgsinθ
3. Take g = 9.8ms-2.
4. (a) Σ F = ma = mg sin θ where mg sin θ is the component of the force parallel to the slope.

## What is the weight equation?

Weight is a measure of the force of gravity pulling down on an object. It depends on the object’s mass and the acceleration due to gravity, which is 9.8 m/s2 on Earth. The formula for calculating weight is F = m × 9.8 m/s2, where F is the object’s weight in Newtons (N) and m is the object’s mass in kilograms.

## What is correct weight and height for age?

Weight and height guide chart

Height Weight
5ft 3″ (63″) 107 to 135 lbs. 141 to 163 lbs.
5ft 4″ (64″) 110 to 140 lbs. 145 to 169 lbs.
5ft 5″ (65″) 114 to 144 lbs. 150 to 174 lbs.
5ft 6″ (66″) 118 to 148 lbs. 155 to 179 lbs.

How 1 kg is defined?

The kilogram, symbol kg, is the SI unit of mass. It is defined by taking the fixed numerical value of the Planck constant h to be 6.sup>−34 when expressed in the unit J⋅s, which is equal to kg⋅m2⋅s−1, where the metre and the second are defined in terms of c and ΔνCs.

Does force equal weight?

The weight of an object is defined as the force of gravity on the object and may be calculated as the mass times the acceleration of gravity, w = mg. Since the weight is a force, its SI unit is the newton.

### How do I know my ideal weight?

Adult Body Mass Index or BMI

• If your BMI is less than 18.5, it falls within the underweight range.
• If your BMI is 18.5 to 24.9, it falls within the normal or Healthy Weight range.
• If your BMI is 25.0 to 29.9, it falls within the overweight range.
• If your BMI is 30.0 or higher, it falls within the obese range.

### How I calculate my height?

A person who’s 5 feet, 6 inches tall is 66 inches. One inch equals 2.54 centimeters (cm). So, to make the conversion, simply multiply your height in inches by 2.54 to get your height in centimeters. In this case, a person who’s 5 feet, 6 inches tall, once converted to the metric system, is 167.64 cm tall (66 x 2.54).

What is the SI unit of force?

newton

Is 50 kg heavy for a girl?

At your age, everything is in flux. But here in the UK and according to the BMI chart , a woman of your height should be between 50kg and 70kg. But here in the UK and according to the BMI chart , a woman of your height should be between 50kg and 70kg.

## How can I lose 20 kgs in a month?

Weight loss plan to lose 20 kgs –

1. “Drink lots and lots of water — even when I am not thirsty. Staying hydrated as multiple health benefits and also aids weight loss.
2. Cut 500 calories from my diet plan.
3. Do cardio exercises — 5 days a week and strength training workouts for 3-4 days a week.

## How do you calculate weight and height?

Square your height in meters. Divide your weight in kilograms by the number you obtained. For example: your height is 170cm; your weight is 65kg. Therefore, 65 : (1.7 * 1.7) = 22.5.

What force is normal force?

The normal force is a force perpendicular to the ground that opposes the downward force of the weight of the object. That’s all there is to it and you don’t have to think of it in terms of individual atoms in most problems you come across. The ‘normal’ force is a type of ‘contact’ force.

What is height/weight ratio?

This ratio of weight to height is known as the body mass index (BMI). People who are overweight (BMI of 25–29.9) have too much body weight for their height. People who are obese (BMI of 30 or above) almost always have a large amount of body fat in relation to their height.

### Is normal force equal to gravity?

The normal force on an object at rest on a flat surface is equal to the gravitational force on that object.

### Is normal force always equal?

The normal force is usually symbolized by N . In many cases the normal force is simply equal to the weight of an object, but that’s only when the normal force is the only thing counteracting the weight. That is not always true, and one should always be careful to calculate any force by applying Newton’s second law.

What is the weight formula?

The most common definition of weight found in introductory physics textbooks defines weight as the force exerted on a body by gravity. This is often expressed in the formula W = mg, where W is the weight, m the mass of the object, and g gravitational acceleration.