Problem 1.42 17 of 25 Review | Constants Part A A woman takes her dog Rover for a walk on a leash. To get the little pooch moving forward, she pulls on the leash with a force of 20.0 N at an How much force is tending to pull Rover forward? angle of 33.0 . above the horizontal. AEQ ? Fforward = N Submit Request Answer Part B How much force is tending to lift Rover off the ground? AEd O ? Fup N Submit Request AnswerProblem 2.35: Faster than a speeding bullet! 16 of 25 Review | Constants What is the acceleration of the bullet while it is in the barrel, assuming it to be constant? Express your answer in g's. The Beretta Model 92S (the standard-issue U.S. army pistol) has a barrel 127 mm long. The bullets VO AED ? leave this barrel with a muzzle velocity of 339 m/s a = g Submit Request Answer Part C For how long is the bullet in the barrel? IVO AED ? t = S Submit Request AnswerMultiple Choice Question 4.5 18 of 25 Review | Constants Part A Consider what happens when you jump up in the air. Which of the following is the most accurate statement? O Since the ground is stationary, it cannot exert the upward force necessary to propel you into the air. Instead, it is the internal forces of your muscles acting on your body itself which propels the body into the air. You are able to spring up because the earth exerts a force upward on you which is stronger than the downward force you exert on the earth. When you push down on the earth with a force greater than your weight, the earth will push back with the same magnitude force and thus propel you into the air. O It is the upward force exerted by the ground that pushes you up, but this force can never exceed your weight. Submit Request Answer0 m) as shown in the figure. The initial velocity components are VD ground at point 0. In the figure, the y-coordinate of point P is closest to: Multiple Choice Question 5.2 20 of 25 Part A The figure shows two forces of equal magnitude acting on an object. If the common magnitude of the forces is 1.7 N and the angle between them is 40, what third force will cause the object to be in equilibrium? F 1 O 2.6 N pointing to the right 3.2 N pointing to the right 1.6 N pointing to the right O 1.3 N pointing to the right Submit Request AnswerMultiple Choice Problem 4.07 21 of 25 Review | Constants Part A A rocket firing its engine and accelerating in outer space (no gravity, no air resistance) suddenly runs out of fuel. Which of the following best describes its motion after burnout? O It immediately begins slowing down and gradually approaches zero velocity. O It continues to accelerate at the same rate. O It continues to accelerate but at a gradually decreasing rate, until it reaches a constant velocity. It immediately stops accelerating, and continues moving at the velocity it had when burnout occurred. Submit Request