# physics

posted by .

What.is.the.weight.of.a.150.lb.person.in.newtons?.what.is.his.mass.in.kilograms?

• physics -

The conversion factor is 0.225 lb/N
Therefore 150 lb = 150/0.225 = 667 N

The second question asks to convert weight to mass, and for this you have to assume a value for g. When g = 9.8 m/s^2 (as at the surface of the Earth), 1 kg has a weight of 2.2 lb. Therefore the mass os a 150 lb person is 150/2.2 = 68.2 kg.

You could also just divide the Newtons weight of the first part by g in m/s^2 to get mass in kg.

## Similar Questions

1. ### physics

What,is,the,weight,of,150lb,person,in,newtons?
2. ### Physics

A Ferris Wheel, 24.0 m in diameter, rotates once every 12.5s. What is the fractional change in a person's apparent weight: a) at the top, and b) at the bottom?
3. ### physics

The force of gravity between two people is 4.9 x 10-13 Newtons. Person 1 has a mass of 61.3 kilograms, and person 2 has a mass of 93.5 kilograms. The value of G is 6.67 x 10-11 m3/s2 kg. How far apart are they from each other?
4. ### physics

A person with a mass of 77.5 kilograms is pushed on a sled across the frictionless surface of a frozen pond with a constant horizontal force of 14.8 Newtons. What is their acceleration?
5. ### physics

Using the weight equation, weight = (mass)(strength of gravity field) or Fg = mg, calculate your mass in kilograms. Constants: Strength of the gravity field near the surface of the earth, g = 9.8 m/s2. 4.448 Newtons equals one pound …
6. ### math

This is confusing: This proportion can be changed to (0.45)y = x, where x represents the person's weight in kilograms and y represents the person's weight in pounds. The recommended protein in grams is numerically equal to the person's …
7. ### physics

Your friend weighs 145 lb. What is her mass in kilograms if she went to the moon where the acceleration of gravity is 1/6 that on earth?
8. ### physics

The combined mass of a man and a chair suspended at the midpoint of a rope of negligible mass is 50 kilograms. The rope is connected to a weight of 4360 newtons hanging from a massless frictionless pulley. Find the angle.
9. ### physics

A force of 1.35 newtons is required to accelerate a book by 1.5 meters/second2 along a frictionless surface. What is the mass of the book?
10. ### physics

A car with a mass of 1.2 × 103 kilograms starts from rest and attains a speed of 20 meters/second in 5 seconds. What net force acted on the car to cause that acceleration?

More Similar Questions