The gravitational force on a body of mass `1.5 ` kg situated at a point is 45 M . The gravitational field intensity at that point is .

Options

A. Potential energy will increase
B. Kinetic energy will decrease
C. Total energy will increase
D. All of these

Answer

To find the gravitational field intensity at a point where a body of mass 1.5 kg experiences a gravitational force of 45 N, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of Gravitational Field Intensity**:
Gravitational field intensity (I) is defined as the force experienced by a unit mass placed in the gravitational field. It is given by the formula:
\[ I = \frac{F}{m} \]
where \( F \) is the gravitational force and \( m \) is the mass of the object.

2. **Identify the Given Values**:
- Gravitational force \( F = 45 \, \text{N} \)
- Mass \( m = 1.5 \, \text{kg} \)

3. **Substitute the Values into the Formula**:
Using the formula for gravitational field intensity:
\[ I = \frac{F}{m} \]
Substitute the known values:
\[ I = \frac{45 \, \text{N}}{1.5 \, \text{kg}} \]

4. **Calculate the Gravitational Field Intensity**:
Perform the division:
\[ I = 30 \, \text{N/kg} \]

5. **State the Final Answer**:
The gravitational field intensity at that point is:
\[ I = 30 \, \text{N/kg} \]