Part A On a hot summer day, a young girl swings on a rope above the local swimming hole (Figure 1). When she lets go of the rope her initial velocity is 2.10 m/s at an angle of 35.0° above the horizontal. If she is in flight for 0.618 s, how high above the water was she when she let go of the rope? Express your answer in meters. ▸ View Available Hint(s) h = = Submit Provide Feedback ΜΕ ΑΣΦ ? B
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- You buy a plastic dart gun, and being a clever physics student you decide to do a quick calculation to find its maximum horizontal range. You shoot the gun straight up, and it takes 4.0 ss for the dart to land back at the barrel. Part A What is the maximum horizontal range of your gun?Help! 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/s2Suppose a projectile is fired with initial speed v, and angle e above the horizontal. a) Understand and plan. Draw a picture, establish a coordinate system for this problem and label your diagram. Make a table of known/given information and unknown/wanted information (this may involve reading the rest of the problem before starting). b) Using Kinematics, derive a symbolic expression for the maximum height reached by the projectile. Check the physical units of your expression. c) Using Kinematics, derive a symbolic expression for the total time the projectile is in the air. Check the physical units of your expression. d) Using Kinematics, derive an expression for the magnitude and direction angle of the projectiles velocity a time t after the object is fired. Check the physical units of your expression. e) Suppose that the projectile is fired with an initial speed of v, = 46.6 m/s and 0 = 42.2°, what is the magnitude and direction angle of the projectile's velocity t = 1.50 s after…
- Part A Constan A projectile is fired from point 0 at the edge of a cliff, with initial velocity components of vox 60.0 ms and var 175 m/s, as shown in the figure. The projectile rises and then falls into the sea at point P The time of flight of the projectile is 400s, and it experiences no appreciable air resistance in flight. What is the magnitude of the velocity of the projectile 210s nfter it is fired? -D→ A projectile fired from the edge of a cliff. Express your answer with the appropriate units. -> Value Submit Request Answer Units Next>> SHIPM 6/12/00NC Welcome to MyTCC X KPhysics 1 Chapter 2 Problem 2.82 0 Type here to search Content You shoot an arrow into the air. Two seconds later (2.00 s) the arrow has gone straight upward to a height of 31.0 m above its launch point. A A https://session.masteringphysics.com/myct/itemView?assignment ProblemID=180595496# d+ X I J C Mastering Physics: Physics X C L v0 = 25.3 m/s Submit Part B ✔ Correct t = Provide Feedback How long did it take for the arrow to first reach a height of 15.5 m above its launch point? Submit Previous Answers % VE ΑΣΦ ℗ 2.7: Freely Falling Objects X 2.2: Averag Request Answer W 0 C Y ? S 45°F Cle.An airplane is heading due south at a speed of 590 km/h. If a wind begins blowing from the southwest at a speed of 60.0 km/h (average).
- A car traveling at 17.0 m/s runs out of gas while traveling up a 25.0 ° slope. Part A How far up the hill will it coast before starting to roll back down?A baseball is hit with a speed of 30.0 m/s at an angle of 49.0 . It lands on the flat roof of a 10.0 m -tall nearby building. Part A If the ball was hit when it was 1.3 m above the ground, what horizontal distance does it travel before it lands on the building? Express your answer using two significant figures. Ax = Submit Request AnswerPart A A shot-putter throws the "shot" (mass = 7.3 kg) with an initial speed of 14.1 m/s at a 43.0 ° angle to the horizontal. Calculate the horizontal distance traveled by the shot if it leaves the athlete's hand at a height of 2.15 m above the ground. Express your answer using three significant figures and include the appropriate units. HA ? d = Value Units Submit Request Answer
- 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 mphA 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 ?