Question

A body of mass 60 g experiences a gravitational force of 3.0 N, when placed at a particular point. The magnitude of the gravitational field intensity at that point is:

• A. 0.05 N/kg
• B. 50 N/kg
• C. 20 N/kg
• D. 180 N/kg

Answer 1

The Correct Option is B

To determine the gravitational field intensity at the point where a body of mass 60 g experiences a gravitational force of 3.0 N, we should use the formula for gravitational field intensity \(E\), which is given by:

\[E = \frac{F}{m}\]

Where:

• F is the gravitational force experienced by the body, which is 3.0 N.
• m is the mass of the body. Here, the mass is given in grams, so we need to convert it to kilograms. Since 1 kg = 1000 g, the mass is \(60 \, \text{g} = 0.06 \, \text{kg}\).

Substituting the values into the formula, we get:

\[E = \frac{3.0 \, \text{N}}{0.06 \, \text{kg}} = 50 \, \text{N/kg}\]

Therefore, the magnitude of the gravitational field intensity at that point is 50 N/kg.