Question

What is the weight, on Earth, of a book with a mass of 1.5 kg?

0 1,5 N
0 6,5 N
O 11.3N
0 14 7 N

Answer 1

Answer:

Explanation:

Weight is force due to gravity.

The formula for weight is:

where m is the mass and g is the acceleration of gravity.

On Earth, the acceleration due to gravity is 9.8 meters per seconds squared.

The mass of the book is 1.5 kilograms. Therefore:

Substitute the values into the formula.

Multiply.

1 kg meter per second squared is equal to 1 Newton, so our answer of 14.7 kg*m/s² is equal to 14.7 Newtons.

The weight of a 1.5 kilogram book on Earth is 14.7 Newtons.

Step-by-step explanation:

Answer 2

`\boxed {\tt 14.7 \ Newtons}`

Step-by-step explanation:

Weight is force due to gravity.

The formula for weight is:

`W=m*g`

where m is the mass and g is the acceleration of gravity.

On Earth, the acceleration due to gravity is 9.8 meters per seconds squared.

The mass of the book is 1.5 kilograms. Therefore:

`m= 1.5 \ kg \\g=9.8 \ m/s^2`

Substitute the values into the formula.

`W= 1.5 \ kg *9.8 \ m/s^2`

Multiply.

`W=14.7 \ kg*m/s^2`

1 kg meter per second squared is equal to 1 Newton, so our answer of 14.7 kg*m/s² is equal to 14.7 Newtons.

`W=14.7 \ N`

The weight of a 1.5 kilogram book on Earth is 14.7 Newtons.