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Q.

Is it true that the impulse of force is the product of the resultant force ΣF and the duration of this force Δt, if the force is constant?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is True.
If the force is constant, the impulse of force is the product of the resultant force ΣF and the duration of this force Δt. The cause of changes in motion and, thus, changes in momentum is the force impulse. An impulse is defined as a unified force acting over a specific time period. Impulse is thus a product of force and time. This is easier to calculate because it physically represents the area under the force-time curve, which is easier to find than force. It is represented by the letter "J" and has the mathematical formula J=Ft.
 
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