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- https://phys.libretexts.org/Courses/Gettysburg_College/Gettysburg_College_Physics_for_Physics_Majors/19%3A_N5)_Friction/19.E%3A_Friction_(Exercises)Consider the 65.0-kg ice skater being pushed by two others shown below. (a) Find the direction and magnitude of F tot , the total force exerted on her by the others, given that the magnitudes F 1 and ...Consider the 65.0-kg ice skater being pushed by two others shown below. (a) Find the direction and magnitude of F tot , the total force exerted on her by the others, given that the magnitudes F 1 and F 2 are 26.4 N and 18.6 N, respectively. (b) What is her initial acceleration if she is initially stationary and wearing steel-bladed skates that point in the direction of F tot ? (c) What is her acceleration assuming she is already moving in the direction of F tot ? (Remember that friction always …
- https://phys.libretexts.org/Courses/Muhlenberg_College/MC%3A_Physics_121_-_General_Physics_I/07%3A_Applications_of_Newton's_Laws/7.E%3A_Applications_of_Newton's_Laws_(Exercises)If b = 0.750, and the mass of the skydiver is 82.0 kg, first set up differential equations for the velocity and the position, and then find: (a) the speed of the skydiver when the parachute opens, (b)...If b = 0.750, and the mass of the skydiver is 82.0 kg, first set up differential equations for the velocity and the position, and then find: (a) the speed of the skydiver when the parachute opens, (b) the distance fallen before the parachute opens, (c) the terminal velocity after the parachute opens (find the limiting velocity), and (d) the time the skydiver is in the air after the parachute opens.
- https://phys.libretexts.org/Courses/Georgia_State_University/GSU-TM-Physics_I_(2211)/04%3A_Forces/4.E%3A_PracticeConsider the baby being weighed in the following figure. (a) What is the mass of the infant and basket if a scale reading of 55 N is observed? (b) What is tension T 1 in the cord attaching the baby to...Consider the baby being weighed in the following figure. (a) What is the mass of the infant and basket if a scale reading of 55 N is observed? (b) What is tension T 1 in the cord attaching the baby to the scale? (c) What is tension T 2 in the cord attaching the scale to the ceiling, if the scale has a mass of 0.500 kg? (d) Sketch the situation, indicating the system of interest used to solve each part.
- https://phys.libretexts.org/Courses/Georgia_State_University/GSU-TM-Physics_I_(2211)/07%3A_Newton's_Laws_for_Rotation_and_Static_Equilibrium/7.E%3A_Applications_of_Newton's_Laws_(Exercises)If b = 0.750, and the mass of the skydiver is 82.0 kg, first set up differential equations for the velocity and the position, and then find: (a) the speed of the skydiver when the parachute opens, (b)...If b = 0.750, and the mass of the skydiver is 82.0 kg, first set up differential equations for the velocity and the position, and then find: (a) the speed of the skydiver when the parachute opens, (b) the distance fallen before the parachute opens, (c) the terminal velocity after the parachute opens (find the limiting velocity), and (d) the time the skydiver is in the air after the parachute opens.
- https://phys.libretexts.org/Courses/Gettysburg_College/Gettysburg_College_Physics_for_Physics_Majors/21%3A_N7)_Circular_Motion/21.E%3A_Applications_of_Newton's_Laws_(Exercises)The force on the bicycle wheel can be resolved into two perpendicular components—friction parallel to the road (this must supply the centripetal force) and the vertical normal force (which must equal ...The force on the bicycle wheel can be resolved into two perpendicular components—friction parallel to the road (this must supply the centripetal force) and the vertical normal force (which must equal the system’s weight). (a) Show that θ (as defined as shown) is related to the speed v and radius of curvature r of the turn in the same way as for an ideally banked roadway—that is, θ = tan −1 (v2rg). (b) Calculate θ for a 12.0-m/s turn of radi…
