PROBLEM 2 A hula hoop, with a radius of r, is attached to the ceiling and can rotate about the pin that attaches it to the ceiling. A spider, who used to walk on a DJ Roomba, has now decided to walk on this hanging hula hoop. Find the acceleration of the spider, point P, with respect to a fixed frame using the super magic formula. You must use the super magic formula to solve this problem and draw and label the reference frames used in the diagram below.
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- Please help answer questions 3, and 4 info: Imagine the scene based on your observations of American football games. If you are familiar with such games, you may realize that 40 yards is a relatively long field goal kick so we might expect the ball to be falling from its highest point in part (b). There is no way we can predict an answer to part (a) based on our experience because our experience doesn't involve the numerical values given in the problem. We would expect the vertical position of the ball when it arrives at the goal post to be a few meters.Even though air resistance can have an effect on the motion of a football, we will ignore air resistance so that we can use our analysis models to solve the problem.A rocket rises straight up from rest with an acceleration of 1.50 m/s2 at which point its engine fails. For the rest of its flight it experiences only gravitational acceleration.1) Make a diagram showing the rocket's initial conditions (height, time and velocity), the conditions of the rocket when its engine fails, the conditions of the rocket at the peak of its flight,and the conditions of the rocket when it has returned to the ground.2) At the moment when the engine fails (50 m from the ground), what is the rocket's height? What is its velocity?3) At the peak of its flight, what is its height? What is its velocity? How much time has elapsedsince its launch?4) When the rocket returns to the ground, how long has it been in flight? How fast is it going?Answer on separate paper. Be sure to show all equations used in symbolic and substitutedform before doing calculationsA new car is tested on a 270-m-diameter track. Part A If the car speeds up at a steady 1.2 m/s², how long after starting is the magnitude of its centripetal acceleration equal to the tangential acceleration? Express your answer with the appropriate units. At = Submit μÅ Value Request Answer Units
- A man has a mass of 80 kg on the Earth's surface. Part A How far above the surface of the Earth would he have to go to "lose" 13 % of his body weight? Express your answer using two significant figures.how do i solve this problemHelp! An asteroid is heading towards us at 10 km/s. Scientists decide the best solution is to attach a rocket to the asteroid and fire it to change the trajectory of the asteroid. If the rocket is fired for 8 min, the scientists calculate that the new speed for the asteroid will be 21 km/s and its new trajectory will be at an angle of 25° to its original path. Part A In the process described above, what is the acceleration of the asteroid? Express your answers using two significant figures separated by a comma. Assume that the positive axis is in the direction of the initial motion of the asteroid. The final motion of the asteroid has components in the x and positive y directions only. ax ay = for Part A for Part A undo for Part A redo for Part A reset for Part A keyboard shortcuts for Part A help for Part A Review I Constants m/s2
- q3 You are riding a galloping horse around a circular track at a constant speed. Does the horse's velocity change? Briefly explain why or why not. Hint: In your answer, make sure that the explanation is related to a physics principle covered in this unit. Question 3 options:Background: A full non-uniform circular motion We are going to have an object completing a full circle. A smart-cart was swiveled in the vertical (i.e. in front of us). The cart’s mass is ~240 grams and is hanging from a 0.5 m inextensible light string. In this experiment, the time in seconds and force of tension in Newtons for the smart-cart was measured. a) Find an algebraic equation that relates the minimum/maximum tension to the minimum/maximum linear speed so that the speed magnitudes may be estimated. b) What would be a good way to approximate the linear acceleration at a given time? (i.e. ~3.25 s, which is approximately halfway between the minimum and maximum tension values)A Ford Mustang can accelerate from 0 to 60 mph in a time of 6.0 s. A Mini Cooper isn't capable of such a rapid start, but it can turn in a very small circle 40 ft in diameter. Part A How fast would you need to drive the Mini Cooper in this tight circle to match the magnitude of the Mustang's acceleration? Express your answer in miles per hour. V= 5 ΑΣΦ mph
- Page The heights of a rock after t seconds, when propelled straight up with an initial speed of 80 feet per second from an initial height of 20 feet, can be modeled by the function s(t) = -16t² + 80t +20. When will the height of the rock be 50 feet? Round your answer to the nearest tenth of a second. CA small ball is attached to the lower end of a 0.800-m-long string, and the other end of the string is tied to a horizontal rod. The string makes a constant angle of 41.8° with the vertical as the ball moves at a constant speed in a horizontal circle. Part A If it takes the ball 1.55 s to complete one revolution, what is the magnitude the radial acceleration of the ball? Express your answer with the appropriate units. arad = Value Units ?