# What are some common mistakes students make with impulse?

Students are often doubtful about impulse of force and impulsive force.

Whereas an impulsive force is a kind of force that acts on a body in a very short amount of time, the impulse of force refers to the force and how long it works.

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Some common mistakes students make with impulse include:

- Confusing impulse with momentum.
- Failing to consider the direction of the impulse vector.
- Forgetting to account for the change in momentum when calculating impulse.
- Using incorrect units or not converting units properly when working with impulse.
- Neglecting to account for external forces acting on the object during the impulse.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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