Using the concept of momentum to express Newton's second law ppt-People's Education Edition elective (3-5) courseware

Elective (3-5) "Newton's Second Law with Momentum Concept" ppt Problem Scenario 1: An object with mass m = 5kg Move on the smooth horizontal plane with the initial speed v0 = 10m / s. Now add a horizontal force F to make vt = 30m / s. What are the t values ​​under different forces in the following table? 1. Impulse (I): In physics, the product of the force received by an object and the time it acts is called the impulse of force. I = F · t, unit-N · s (N · s) It is a vector, the direction is the same as the direction of the force.

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