What is the force of gravity exerted on an object having a mass of 5 tonnes?

To determine the force of gravity exerted on an object, you can use the formula:

[ F = m \times g ]

where:

• ( F ) is the force of gravity (in newtons),

• ( m ) is the mass of the object (in kilograms),

• ( g ) is the acceleration due to gravity, which is approximately ( 9.81 , \text{m/s}^2 ) on the surface of the Earth.

In this case, the mass is given as 5 tonnes. Since 1 tonne is equal to 1,000 kilograms, 5 tonnes is equal to:

[ 5 , \text{tonnes} = 5,000 , \text{kg} ]

Now, substituting the values into the formula:

[ F = 5000 , \text{kg} \times 9.81 , \text{m/s}^2 ]

[ F = 49,050 , \text{N} ]

Thus, the force of gravity exerted on an object with a mass of 5 tonnes is 49,050 N. This option is the correct calculation based on the principles of physics