What is the mass of a rock that weights 49 newtons?

Remember that the Weight of any mass is

Weight = (mass) x (gravity)

and gravity on Earth is 9.8 m/s² .

Now just fill in the numbers we know:

49 Newtons = (mass) x (9.8 m/s²)

49 kg-m/s² = (mass) x (9.8 m/s²)

Divide each side by  (9.8 m/s²) , and we have

mass = (49 kg-m/s²) / (9.8 m/s²)

mass = (49 kg-m/s²) x (s²/9.8m)

mass = (49/9.8) x (kg-m-s²/s²-m)

mass = 5 kg

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west

explanation:

to push or pull an object in a certain direction is known as force. a force in moving an object from one place to another.

force depends on the mass of an object. so, more is the mass of an object more will be the force required to move the object.

thus, we can conclude that the use of force to move an object is push or pull.