Sam heaves a 16 lb shot straight upward, giving it a constant upward acceleration from rest of 30.0 m/s² for a height 60.0 cm. He releases it at height 2.10 m above the ground. Ignore air resistance. Part C How much time does he have to get out of its way before it returns to the height of the top of his head, a distance 1.83 m above the ground? Express your answer with the appropriate units. HA ? t = Value Units input for part C
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- Free Fall. Allan is on the ground YA,0 = 0 [m], and Bob is directly above him at YB,0 = 172.[m]. Bob drops a cannonball at the same time Allan shoots a similar cannonball directly upward. Allan’s cannonball was launched with enough speed so that both cannonballs will collide just as Allan’s cannonball reached its maximum height. What is the initial speed of Allan's cannonball ?A small rocket with a booster blasts off and heads straight upwards. When at a height of 4km and a velocity of 250.0 m/s, it releases its booster. a. What is the maximum height the booster attains?b. What is the velocity of the booster at a height of 6.0 km? Neglect air resistanceAn object is dropped from rest from a high altitude and hit the ground later with a final speed of 114 m/s. Find the height (in units of m) from which the object was initially dropped. use g=9.8 m/s². Select one: O A. 1326 OB. 530 OC. 6498 OD. 58 OE. 663
- A rifle is capable of shooting a bullet to an initial speed of 200m/s, if it is shot 60degrees upward, what is the maximum range? Neglect air resistance and consider gravity is constant 9.81m/s^2. a. 3352.1 b. 3531.2 c. 5132.3 d. 5331.2A shot putter releases the shot some distance above the level ground with a velocity of 12.0 m/sm/s, 51.0∘∘ above the horizontal. The shot hits the ground 2.08 ss later. You can ignore air resistance 1. What is the x-component of the shot's acceleration while in flight? Express your answer in meters per second squared. 2. What is the y-component of the shot's acceleration while in flight? Express your answer in meters per second squared.A small rocket launched straight up. When at a height of 5.0km and velocity of 200.0 m/s, it is releases its booster and enters free fall. Neglecting air friction, 1. what is the velocity of the rocket at a height of 6.0km on its way up? A. 142 m/s B. 200 m/s C. 244 m/s D. 397 m/s 2. What is the maximum height, above the ground, the rocket attains? A. 2020m B. 5000m C. 7040m 3. Calculate the total time of flight between releasing its boosters and falling back and hitting the ground? A. 20.4a B. 40.8s C. 37.9s D. 58.3s
- 2. An object is initially suspended at the height yo = 200 m above the surface of the Earth and at time to = 0 it is hurled downwards, with initial velocity -10 m/s. Neglecting air resistance, write an IVP for the object's velocity and solve it. Use g = 9.8.At the Earth's surface, a projectile is launched straight up at a speed of 7.5 km/s. To what height will it rise? Ignore air resistance. 2.87e+06 Your response differs from the correct answer by more than 10%. Double check your calculations. mWhat is the speed of the ball as strikes the ground?
- Nora starts descending from rest while riding a bicycle from the top of a hill 8.0 m high. She reaches ground level, then ascends again to a lower hill. When she just arrives at the top of the second hill, her speed is 7.7 m/s. Determine the height of the lower hill, assuming that the track is frictionless.45. A particle moves horizontally with velocity v, where v = (ri + 3j) ms', at time i seconds. Initially, r = (3i – 4j) m. The distance covered in 3 seconds is A 9v2 m B (12i + Sj) m C 13 m D (9i + 9j) mA rock of mass m is thrown horizontally off a building from a height h, as shown above. The speed of the rock as it leaves the thrower's hand at the edge of the building is vo. h 74. How much time does it take the rock to travel from the edge of the building to the ground? hv, hvo 2h h hvo b. Vo d. с. а. 75. What is the total kinetic energy of the rock just before it hits the ground? 1 -mу; + mgh d. 2 1 1 mv – mgh 2 mgh b. 2 с. а.