In a long jump competition, a competitor moves at 12 m/s and launches herself at 20.0° above the horizontal. How long is she in the air before she lands on the ground? A skateboarder rolls 25.0 m down a hill that descends at an angle of 20.0° with the horizontal. Find the horizontal and vertical components of the skateboarder's displacement

A canon was launched with an initial speed of 104 m/s at an angle of 41.1° above the horizontal. The canon hit the top of a building that is 961 m away from where the canon was launched. What is the height of the building? 238.47 m 419.17 m 101.56 m 538.50 m

ment Chapter 04, Problem 039 Your answer is partially correct. Try again. In the figure, a ball is thrown leftward from the left edge of the roof, at height h above the ground. The ball hits the ground 1.80 s later, at distanced = 26.0 m from the building and at angle 0 = 56.0° with the horizontal. (a) Find h. (Hint: One way is to reverse the motion, as if on videotape.) What are the (b) magnitude and (c) angle relative to the horizontal of the velocity at which the ball is thrown (positive angle for above horizontal, negative for below)? (a) NumberT32.3 Units (b) NumberÍ Units m/s 21.9 (c) Number 40.4 Units (degrees) Click if you would like to Show Work for this question: Open Show Work Privacy PolicY. I 2000-2021 John Wiley & Sons, Inc. All Rights Reserved. A Division of John Wiley & Sons, In e to search 99+

A baseball pitcher throws a pitch with an initial velocity of 45 m/s (100 mph!), directed horizontally. You will be asked to find how far the ball drops vertically by the time it crosses the plate 18.0 m away.  Find the time it takes for the ball to travel the horizontal distance to the plate.    2.5 s   0.40 s   4.6 s   0.22 s

A soccer ball is kicked at a speed of 31.0 m/s at an angle of 41.0 degrees above the horizontal. The ball is in the air for 3.10 s.What is the speed the ball is traveling at when it lands (before the ground stops it)?

A football is kicked at 25.0 m/s at an angle of 29.0° above the horizontal. Assume it starts 1.00 m above ground level. (Neglect any effects due to air resistance.) Describe the velocity vector of the ball in terms of its x- and y-components, U, and u,, respectively, when it is 4.50 m above ground level and still moving upward. U₂ = 21.86 U)= m/s 23.78 Describe the velocity vector of the ball in terms of its magnitude u and angle 0 above the horizon when it is 4.50 m above ground level and still moving upward. m/s 9.38 0= Incorrect 23.22 m/s Incorrect

A hockey puck slides off the edge of a table with an initial velocity of 23.6 m/s and experiences no air resistance. The height of the tabletop above the ground is 2.00 m. What is the angle below the horizontal of the velocity of the puck just before it hits the ground? A) 72.6° B) 31.8° C 14.9° (D) 77.2° E 22.8°

A student standing on a cliff that is a vertical height d = 8.0 m above the level ground throws a stone with velocity v0 = 23 m/s at an angle θ = 16 ° below horizontal. The stone moves without air resistance; use a Cartesian coordinate system with the origin at the stone's initial position. A) With what speed, vf in meters per second, does the stone strike the ground?  B)  If the stone had been thrown from the clifftop with the same initial speed and the same angle, but above the horizontal, would its impact velocity be different?   If the stone had been thrown from the clifftop with the same initial speed and the same angle, but above the horizontal, would its impact velocity be different?

A student standing on a cliff that is a vertical height d = 8.0 m above the level ground throws a stone with velocity v0 = 25 m/s at an angle θ = 17 ° below horizontal. The stone moves without air resistance; use a Cartesian coordinate system with the origin at the stone's initial position. With what speed, vf in meters per second, does the stone strike the ground? Recall that the ball will have a final velocity along the y-axis and the x-axis and these components need to be added together with the Pythagorean theorem in order to find the resultant velocity.

Chinook salmon can cover more distance in less time by periodically making jumps out of the water. Suppose a salmon swimming in still water jumps out of the water with velocity 6.03 m/s at 40.6° above the horizontal, re-enters the water a distance L upstream, and then swims the same distance L underwater in a straight, horizontal line with velocity 2.92 m/s before jumping out again. Where L=3.67 m; t1= 0.801 sec this is a time when fish are over the water; t2= 1.256 sec; Ttotal =2.057 sec; the average horizontal velocity is 3.57 m/s. Consider the interval of time necessary to travel 2L. How is this reduced by the combination of jumping and swimming compared with just swimming at the constant speed of 2.92 m/s? Express the reduction as a percentage.