4 2. -2 1.0 2.0 3.0 4.0 5.0 6.0 7.0 t (ms) The diagram (graph) of Force in kilo Newtons versus time in milliseconds for the motion of a 5.0 kg block moving to the right at 4.0 m/s. What is the magnitude of the impulse acting on the block? * F (kN)

4 2. -2 1.0 2.0 3.0 4.0 5.0 6.0 7.0 t (ms) The diagram (graph) of Force in kilo Newtons versus time in milliseconds for the motion of a 5.0 kg block moving to the right at 4.0 m/s. What is the magnitude of the impulse acting on the block? * F (kN)

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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ent G An impulse of 12.2 kg*m/s is deli x 361242/take 10 p Question 1 A warehouse employee is pushing a 30.0 kg desk across a floor at a constant speed of 0.50 m/s. What is the magnitude of the momentum of the desk? O 0.017 kg*m/s O 15.0 kg*m/s O 60 kg*m/s O 30.5 kg*m/s Question 2 10 pts Norton Antivirus: 19.99/YE Your special price is valid to Google Chrome istudy-helper.co The momentum of a 12kg dog racing to greet its owner has a Norton What is the dog's speed? Install O a Cop
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The bumper of a car has a force sensor mounted inside which records the force vs time graph during crash testing. A particular collision occurs between t = 0.075s and t = 2.32s and can be modelled by the following function: F(t) = 4t4 – 80t² + 140t – 10 A graph of the collision is also provided below: Impulse 60 50 40 30 20 10 1 time (s) Part A The impulse during the collision will be while the maximum force experience by the bumper will be 75 kg · m/s, 33N 54 kg · m/s, 54N O 75 kg · m/s, 54N 54 kg · m/s, 33N (N) aɔ10
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An astronaut floating at rest in space throws a wrench in one direction and subsequently recoils back with a velocity in the opposite direction. Which of the following statements is/are true? 1. The velocity of the wrench is equal and opposite to the velocity of the astronaut. II. The momentum of the wrench is equal and opposite to the momentum of the astronaut. III. The impulse applied to the wrench is equal and opposite to the impulse applied to the astronaut. II and III only I only Il only I, II, and III I and II only
Force Exerted on an Object vs. Time 8 3 Time (s) Which of the following statements about the graph is correct? Your answer: O The area between the line and the x-axis could be the object's change in momentum (or impulse). O The area between the line and the x-axis could be the power exerted on the object. O The slope of the line could be the object's change in momentum (or impulse). O The slope of the line could be the power exerted on the object. O Neither of these values could be found from the graph. Force (N) 00
Part A A tennis ball of mass m = 0.060 kg and speed v = 29 m/s strikes a wall at a 45° angle and rebounds with the same speed at 45°. (Figure 1) What is the magnitude of the impulse given to the ball? Express your answer to two significant figures and include the appropriate units. µA а xa Xb X•10" FAt = 1.82808 kg S Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining Part B What is the direction of the impulse given to the ball? Figure 1 of 1 upward downward to the left to the right 450 Submit Previous Answers 450 Correct 圓

A large raindrop--the type that lands with a definite splat--has a mass of 0.014 g and hits your roof at a speed of 8.1 m/s. Part A What is the magnitude of the impulse delivered to your roof? Express your answer with the appropriate units. J = Part B Fav = μA Value .0 If the raindrop comes to rest in 0.37 ms, what is the magnitude of the average force of the impact? Express your answer with the appropriate units. μA Units Value 2 ? Units ?
*Problem 3: A 1000 kg car travelling at 60 mph (26.84) impacts a brick wall. The car comes to a stop in At = 15 ms. a) What is the magnitude of the impulse (J ) applied to the car? (A: 26,800 Ns) b) What is the magnitude of the net force applied to the car during the crash? (A: 1.79x106 N) c) A person with a mass of 75 kg is strapped into the car. What is the magnitude of the impulse applied to the person? (A: 2010 Ns) d) What is the magnitude of the net force applied person during the crash? (A: 134,000 N) m e) What is the acceleration of the person during the crash in terms of g? 1g = 9.8– (A: 182g) f) How could we increase the survivability of the crash? Explain.
8. A force acts on a 5.4 kg object with the magnitude shown in Figure as a function of time. 2.0 438 1.5 € 1.0 0.5- 0 0.5 1.0 1.5 2.0 2.5 3.0 t(s) (a) Determine the impulse imparted by the force on the object. (b) Determine the final velocity of the object if it had an initial velocity of 24 m/s in the negative direction
A- Using the equation f=mv/t and the example problem given in the leture answer the following problem. A kick-ball of mass 0.5 kilograms is moving at 4 meters/second after being kicked. The kick lasted 2 seconds. How much force was used to kick the ball?_____newton. B- Ft=mv. impulse = momentum. Due to this formula gymniats practice on thick mats. The mats increase the time that it takes for the gymnast to come to a stop. Thus decreasing the forces acting on the gymnast. (True or False)