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A: Solution:-Given thatInitial speed (u)=15 m/sangle (θ)=60°
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A: Option B is the right answer They will both be the same
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A: The object in motion will move in straight line with constant speed is called constant velocity.
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Q: 22. An object is launched from a 100 m high cliff with an initial velocity of 20 m/s at an angle of…
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A: Given, Initial velocity u=160 ft/s angle=30 degree Range r=640 ft Height of the wall H=50 ft
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- Back on Earth, a ball is thrown off a roof top with a horizontal velocity 8 m/s and a downward vertical velocity 5 m/s. It hits the ground 2.2 s later. What is the direction at which the ball hits the ground? Give the angle the velocity vector makes with vertical (straight down = 0° and horizontal = 90°). Use g = 9.8 m/s² if needed and neglect air friction. %3D Read carefully -- there are versions of this question with upward vertical velocity and another with downward vertical velocity.A projectile 10.0 m above ground is fired horizontally with an initial speed of 12.0 m/s the projectile in air = 1.43s the projectile travel before hitting the ground = 17.2 m The fired cannon at several different initial speeds and its corresponding ranges initial speed range 13.0 18.6 14.0 20.0 15.0 21.5 16.0 22.9 17.0 24.3 a. Does range increase linearly with the initial speed? Explain. b. Find the time of flight t and the correlation coefficient r : c. Find the value of gYou aim a rifle horizontally in a perfectly flat field while your friend holds a bullet at the same height as your rifle. You fire the rifle and your friend simply opens her hand simultaneously, allowing the bullet to drop. Your friend claims that both bullets hit the ground at the same moment. Do you agree? Justify your answer. Ignore air resistance.
- 2A projectile is launched into the air. Select all statements that are true. At the highest point reached by the projectile the y-component of its acceleration is zero. At the highest point reached by the projectile the y-component of its velocity is zero. At the highest point reached by the projectile the magnitude of its acceleration is zero. At the highest point reached by the projectile the magnitude of its velocity is zero. A person drops an object out of the cargo bay of a horizontally flying plane. Select all statements that are true. When the object is dropped, the y-component of its initial velocity is zero. When the object is dropped, its initial velocity is zero. When the object is dropped, the x-component of its initial velocity is zero.