Given that the body moves under the influence of a constant power source, we aim to find the relation between the displacement and the time .
Step 1: Understanding the Relationship Between Power and Velocity
Power delivered to the body is constant and is given by:
where:
- is the force acting on the body,
- is the velocity of the body.
Using Newton’s second law , where is the mass and is the acceleration, we have:
Since power is constant, we can write:
Step 2: Integrating the Equation
Rearranging:
Integrating both sides:
This yields:
Taking the square root:
Step 3: Finding the Displacement
Velocity is the derivative of displacement with respect to time:
Rearranging and integrating:
Integrating both sides:
Therefore, the displacement is proportional to .
A force acts on a particle in a plane . The work done by this force during a displacement from to is Joules (round off to the nearest integer).