11. Momentum & Impulse
Impulse with Variable Forces
11. Momentum & Impulse
Impulse with Variable Forces
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- Multiple Choice
An object experiences a force given by the graph below. What value of Fmax would give an impulse of 6 N⋅s?
965views23rank5comments - Multiple ChoiceA 2.0 kg toaster is subjected to one force only. The force is in the positive x-direction, and it varies in time such that before . ; between and . ; and after . again. If the toaster started from rest, how fast will it be moving at ?589views1rank
- Textbook Question
(II) The force on a bullet along the barrel of a firearm is given by the formula F = [740 ― (2.3 x 10⁵ s⁻¹ ) t] N over the time interval t = 0 to t = 3.0 x 10⁻³ s .
(c) Determine the impulse by integration.
351views - Textbook QuestionA force in the +x-direction increases linearly from 0 N to 9000 N in 5.0 s, then suddenly ends. (b) What impulse does this force provide?608views
- Textbook QuestionA 30 g dart traveling horizontally hits and sticks in the back of a 500 g toy car, causing the car to roll forward at 1.4 m/s. What was the speed of the dart?586views
- Textbook QuestionFar in space, where gravity is negligible, a 425 kg rocket traveling at 75 m/s in the +x-direction fires its engines. FIGURE EX11.10 shows the thrust force as a function of time. The mass lost by the rocket during these 30 s is negligible. (b) At what time does the rocket reach its maximum speed? What is the maximum speed?571views