An object slides along the inside of a vertical circular track and never loses contact with the track. As it slides upward it slows down, ar as it slides downward it speeds up. It's not known whether it's moving clockwise or counterclockwise in the view shown. Match points A, B C, and D with possible acceleration vectors at those points. Only one of the acceleration vectors shown is possible at each point. A B
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- Please answer this question. An airplane releases a ball as it flies parallel to the ground at a height of ℎ=245 m as shown in the figure. If the ball lands on the ground a horizontal distance equal to the height ℎ from the release point, calculate the speed ? of the plane. Neglect any effects due to air resistance, and use ?=9.81 m/s2 for the acceleration due to gravity.A cannonball is fired from a height of 25 m above ground level, with an initial speed of 22.36 m/s and at an angle of 63.4⁰ above the horizontal. The cannonball lands at ground level. a. How long was the ball in the air (the “hang time")? b. How far does the cannonball travel horizontally? c. What is the final speed of the cannonball just before making contact with the ground?An object rolls off a tabletop with a horizontal velocity Vox = 12 m/s. The table is at a height yo = 0.65 m above the floor. Use a coordinate system with its origin on the floor directly beneath the point where the object rolls off the table, it’s horizontal x-axis lying directly beneath the objects trajectory, and it’s vertical y-axis pointing up. a. How long, in seconds, is the object falling before it hits the floor? b. What’s the horizontal distance, in meters from the edge of the tabletop to where the object lands? c. What is the vertical component of velocity, in meters per second, when the object hits the ground? d. What is the magnitude of velocity when it hits the floor?
- A particle moves in a circular path according to the clockwise equation θ(t)=π/4+2t+4t2, where θ is the angle between the particle's position vector and the x axis, oriented positively counterclockwise. θ is measured in radians and t in seconds. Which of the images below represents the velocity vectors v (in red) and acceleration a (in blue) of the particle at time t=0? Choose between an option : A, B, C, D, E, F, G, or H2.17Hi I need help please
- When the motorcyclist is at A, he increases his speed along the vertical circular path at the rate of v = (0.04s) ft/s² where s is in ft. Take p = 270 ft. ▼ Part A V If he starts at V₁ = 2 ft/s where s = 0 at A, determine the magnitude of his velocity when he reaches B. = Express your answer to three significant figures and include the appropriate units. μÅ Value Units Submit Part B = P 0 O μà 60° Submit Also, what is his initial acceleration? Express your answer to three significant figures and include the appropriate units. Value Units Request Answer P Request Answer ? ?Trent is running along a circular track that has a radius of 45 meters. Trent starts at the 3-o'clock position and travels in the CCW direction, stopping after 106 meters. Imagine an angle with a vertex at the center of the circular track that subtends the path Trent has traveled. When Trent stops, what is his vertical distance from the center of the track?An arrow is shot from a height of 1.75 m toward a cliff of height H. It is shot with a velocity of 32 m/s at an angle of 60° above the horizontal. It lands on the top edge of the cliff 3.65 s later.a. what is the maximum height reached by the arrow along its trajectory in meters?b. what is the arrows speed just before hitting the cliff in m/s?