I think this question can be answered by combining the equations for impulse and work done. Impulse of Force. if defined as impulse per mass (or thrust per mass flow rate) . It is correct to say impulse is equal to (a) the change in momentum (b) momentum (c) the force multiplied by the distance the force acts (d) all the above (e) none (b) less than the speed of the bullet. the impulse of force can be extracted and found to be equal to the change in momentum of an object provided the mass is constant: The impulse experienced by a body is equivalent to the body's change in {eq}\rule{0.5in}{0.3pt} {/eq}. A rifle recoils (moves back in the opposite direction) from firing a bullet. When a net force acts on a body, it accelerates in the direction of the force. Impulse = Ft. Related Questions. From Newton's second law. Note that this is a vector equation because the force has a direction; therefore the impulse does as well. Correct answers: 2 question: - An impulse is equivalent to a. the change in mass of an object. Said another way, we replace the value of "t" in the function f(t) by the value of "t" that makes the argument of the impulse equal to 0 (in this case, t=λ). Impulse is a quantity that is closely related to momentum. When there is a collision between two objects, Newton's Third Law states that the force on one of the bodies is equal and opposite to the force on the other body. This is also equal to the magnitude of the force multiplied by the length of time the force is applied. Q: A spoon which looks bent is … A) Change in momentum: B) Change in force: C) Change in velocity: D) Change in acceleration: Answer: A) Change in momentum Explanation: Subject: Physics Exam Prep: Bank Exams. Specific impulse. c. a force applied to an object for a period of time. Impulse can be an important quantity when you’re solving physics problems because you can relate impulse to momentum, and you must work with momentum to … d. the original momentum of the object. Δ p = (W Δ t) / d Where Δp is the impulse and W is the work done. Impulse of Force. What is impulse equal to? is a measure of the efficacy of rocket propellants. When an object has a momentum , and a force is applied for an amount of time, the momentum can change to a new value .The impulse-momentum theorem states that the impulse is equal to this change in momentum. Impulse = change in momentum = force × time; Conservation of Momentum. 2. 2) Impulse = Ft. where F is the force and t is the length of time the force acts. Impulse is a vector quantity whose direction is that of the force. The speed of the rifle's recoil is The impulse of a force is equal to the force times the length of time the force acts i.e. b. the change in volume of an object. is equal to exhaust velocity and has the SI unit of meter per second. Impulse is a vector, with both a value and a direction, and is represented by the symbol . The product of average force and the time it is exerted is called the impulse of force. This is called the "sifting" property because the impulse function d(t-λ) sifts through the function f(t) and pulls out the value f(λ). From the previous section, you have seen that Newtons Second Law can be summed up by the formula F = ma. Impulse of a force. The equation for impulse derives from Newton's second law of motion: F = (Δp)/ (Δ t) ⇒ Δ p = F Δ t Δp is the change of momentum, which is referred to as "impulse". 1. 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