A stone thrown horizontally from the top of a 24-m tower hits the ground at a point 18 m from the base of the tower. Find the speed with which the stone was thrown.
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- A projectile with an initial velocity of 59.0 m / s is launched at an angle of 35.0 ° above the horizontal. The projectile lands on a hillside 3.80 s later. Neglect air friction. (Suppose the + x axis goes to the right and the + y axis goes up along the page). (a) What is the velocity of the projectile at the highest point of its trajectory? (magnitude m / s and direction ° (counterclockwise from the + x axis) b) What is the straight-line distance from where the projectile was launched to where it hits its target?A batter hits a fly ball with an initial velocity of 37 m/s at an angle of 32° from the horizontal. How much time does the outfielder have to get to the appropriate position to catch the ball?A person stands at the edge of a cliff and throws a pebble horizontally over the edge with a speed of v0 = 20.0 m/s. The pebble leaves his hand at a height of h = 52.0 m above level ground at the bottom of the cliff, as shown in the figure. Note the coordinate system in the figure, where the origin is at the bottom of the cliff, directly below where the pebble leaves the hand.
- A soccer ball is kicked at a speed of 30.0 m/s at an angle of 43.0 degrees above the horizontal. The ball is in the air for 3.70 s.What is the difference in height between where the ball was kicked and where it lands?A golfer hits an approach shot with a velocity of 38.2 m/s at 50 degrees above the horizontal. The golf ball lands directly next to the hole, 5.50 m above the ball’s original position, and stops immediately. How far horizontally was the golfer from the hole?If a projectile is launched at 73 degrees above the horizontal at 57.9 m/s, what is the direction of the projectile’s acceleration?
- A tennis ball is struck with an initial velocity of 30 m/s, 28 degrees above the horizontal.What is the vertical component of this initial velocity?You launch a projectile at an initial speed of 38.8 m/s from the ground. After 5.10 seconds of flight, the projectile lands on the ground. At what angle above the horizontal was the projectile launched?A rock is thrown from the edge of the top of a 86 m tall building at some unknown angle above the horizontal. The rock strikes the ground a horizontal distance of 60 m from the base of the building 6 s after being thrown. Assume that the ground is level and that the side of the building is vertical. Determine the speed with which the rock was thrown.
- In the figure, a stone is projected at a cliff of height h with an initial speed of 49.0 m/s directed at an angle e0 = 53.0° above the horizontal. The stone strikes at A, 5.89 s after launching. Find (a) the height h of the cliff, (b) the speed of the stone just before impact at A, and (c) the maximum height H reached above the ground. (a) Number i Units (b) Number Units (c) Number Units3. A cannon on Earth (located at the origin) launches a projectile, of mass m, horizontally at height y = 0 m with speed vo, as shown in the figure below: y (m) ↑ x (m) Fw There is a strong wind that imparts a force with constant magnitude Fw, in the negative x-direction, on the projectile as it is airborne. VoA projectile is shot from the launcher at 6.5 m/s horizontally. It lands 3 meters away horizontally. What is the starting height of the projectile?