Lab 4

Part A- Finding the het friction force Learning Goal: To set up and evaluate the equations of motion in a normal-tangential coordinate system. The car is traveling at a speed of 62.5 ft/s, which is increasing at a rate of 4.55 ft/s? , and the curvature of the road is p = 710 ft. What is the magnitude of the net frictional force that the road exerts on the tires? Express your answer to three significant figures and include the appropriate units. A car of weight 3850 lb is traveling around a curve of constant curvature p.(Figure 1) • View Available Hint(s) Figure 1 of 1> F = Value Units Submit Part B - Finding the maximum allowable acceleration 2080 lb. If the car is traveling at 64.5 ft/s and the Suppose that the tires are capable of exerting a maximum friction force curvature of the road is p = 410 ft , what is the maximum tangetial acceleration that the car can have without sliding? Express your answer to three significant figures and include the appropriate units. > View Available…

Q3: Choose the correct answer for five only (True or False) 1- Dynamics is concerned with bodies that only have accelerated motion. 2- A particle has a mass but negligible size and shape. 3- The average velocity of a particle is different than its average speed. 4- If the acceleration is zero, the particle cannot move. 5- Kinematics is concerned with the forces that cause the motion. 6- A particle can have an acceleration and although it has zero velocity.

▼ Part A - Determining the magnitudes of the velocity and acceleration of the first driver Determine the magnitudes of the velocity and acceleration of the first driver. Express your two answers, separated by a comma, to two significant figures in meters per second and meters per second squared. ► View Available Hint(s) ΨΕ ΑΣΦ 11 vec S ? v₁. a1 = m/s m/s² Submit Previous Answers X Incorrect; Try Again; 3 attempts remaining 4 Part B - Determining the magnitudes of the velocity and acceleration of the second driver Determine the magnitudes of the velocity and acceleration of the second driver. by a comma, to two significant figures in meters per second and meters per second squared. 64.7, 14.5

Topics: Statics of Rigid Bodies, Equilibrium of Rigid Bodies, Equilibrium in Two Dimensions, etc.   I will rate you with “LIKE/UPVOTE," if it is COMPLETE STEP-BY-STEP SOLUTION.   If it is INCOMPLETE SOLUTION and there are SHORTCUTS OF SOLUTION, I will rate you with “DISLIKE/DOWNVOTE.”    THANK YOU FOR YOUR HELP.   PS: If you have answered this already, don’t answer it again; give chance to other experts to answer it. I want to verify if all of you will arrive in the same final answer; thats why I ask it multiple times. If you answer it again, i'll dislike all your entries/answers.

Topics: Statics of Rigid Bodies, Equilibrium of Rigid Bodies, Equilibrium in Two Dimensions, etc.   I will rate you with “LIKE/UPVOTE," if it is COMPLETE STEP-BY-STEP SOLUTION.   If it is INCOMPLETE SOLUTION and there are SHORTCUTS OF SOLUTION, I will rate you with “DISLIKE/DOWNVOTE.”    THANK YOU FOR YOUR HELP.   PS: If you have answered this already, don’t answer it again; give chance to other experts to answer it. I want to verify if all of you will arrive in the same final answer; thats why I ask it multiple times. If you answer it again, i'll dislike all your entries/answers.

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1.  Circle weather the following statements are true or false. If the statement is true justify your reasoning if the statement is false correct the statement to make it true or justify why it is false a. Impulse is the integral of a force vs distance graph b. In two dimensions analyzing linear and angular momentum provides up to three scalar equations. c. Linear acceleration and angular acceleration both have units of ft/s^2 or m/s^2 d. When absolute motion or a rigid body it is important to find a function that relates linear and angular position then integrate to find velocity  e. Instantaneous centers can only be determined for velocity and only for a snapshot in time

1. Determine if the following statements are true or false. If the statement is true, justify your reasoning. If the statement is false, correct the statement to make it true. a. For one-dimensional motion, deceleration always occurs in the negative direction. b. If a ball is tossed into the air, the acceleration at the top of its path is zero. c. The slope of a velocity vs. time graph represents the position of a particle. d. The tangential velocity of a particle can never be negative. e. In relative motion, n =-Ün/A

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The he of 1 X Incorrect; Try Again; 3 attempts remaining Part B - Determining the magnitudes of the velocity and acceleration of the second driver Determine the magnitudes of the velocity and acceleration of the second driver. Express your two answers, separated by a comma, to two significant figures in meters per second and meters per second squared. ►View Available Hint(s) E| ΑΣΦΗ1 | vec ? V2, A2= m/s, m/s² Submit Part C - Finding the equation for the overall magnitude of velocity and acceleration Identify the equations for the overall magnitude of the velocity and acceleration of the driver in terms of the radius of curvature, r, the transverse rate of rota the transverse rate of acceleration, 0 ► View Available Hint(s) ENG F4D

Learning Goal: To use the principle of linear impulse and momentum to relate a force on an object to the resulting velocity of the object at different times. The equation of motion for a particle of mass m can be written as ∑F=ma=mdvdt By rearranging the terms and integrating, this equation becomes the principle of linear impulse and momentum: ∑∫t2t1Fdt=m∫v2v1dv=mv2−mv1 For problem-solving purposes, this principle is often rewritten as mv1+∑∫t2t1Fdt=mv2 The integral ∫Fdt is called the linear impulse, I, and the vector mv is called the particle's linear momentum.   A tennis racket hits a tennis ball with a force of F=at−bt2, where a = 1300 N/ms , b = 300 N/ms2 , and t is the time (in milliseconds). The ball is in contact with the racket for 2.90 ms . If the tennis ball has a mass of 59.7 g , what is the resulting velocity of the ball, v, after the ball is hit by the racket?

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