Question

Lisa is conducting an investigation to determine the coefficient of friction between two surfaces. She uses a 25 kg block. What is this object's weight, in newtons?

Answer 1

Answer:

Weight, W = 245 N

Explanation:

It is given that,

Mass of the block, m = 25 kg

We need to find its weight. From Newton's second law of motion,

$F=m\times a$

a is the acceleration of the object

On the surface of earth, $a=9.8\ m/s^2$

$F=25\ kg\times 9.8\ m/s^2$                    

F = 245 N

So, the weight of the object is 245 N. Hence, this is the required solution.

Answer 2

Answer:

245.25

Explanation:

1 kg is 9.81 newtons