This lesson covers the concept of impulse momentum formulation, which is a different approach based on Newton's laws of motion. The lesson explains how a time-varying force acting over a certain period can cause a change in momentum. The instructor uses a scalar formulation of Newton's law to illustrate the idea and then introduces the concept of impulse, which is the integral of a time-varying force over a certain span of time. The lesson also includes a practical example of a block sliding up an inclined plane under the action of a time-varying force. The impulse momentum formulation is used here to calculate the time at which the block would acquire a certain velocity.

- Impulse momentum formulation is a different approach based on Newton's laws of motion.
- Impulse is the integral of a time-varying force over a certain span of time.
- Impulse causes a change in momentum.
- The impulse momentum formulation can be used to calculate the time at which an object would acquire a certain velocity under the action of a time-varying force.

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