7. For a javelin thrower to maximize her throwing distance, she should release the javelin at an angle a of 458 b of less than 452 of greater than 45 d dependent on the javelin's speed upon release e dependent on the thrower's strength 8. For a projectile returning to level ground, as the angle of projection increases from 0 to 453, a projectile's time of flight increases and horizontal range decreases a decreases and horizontal range decreases C. increases and horizontal range increases d decreases and horizontal range increases remains constant and horizontal range decreases

7. For a javelin thrower to maximize her throwing distance, she should release the javelin at an angle a of 458 b of less than 452 of greater than 45 d dependent on the javelin's speed upon release e dependent on the thrower's strength 8. For a projectile returning to level ground, as the angle of projection increases from 0 to 453, a projectile's time of flight increases and horizontal range decreases a decreases and horizontal range decreases C. increases and horizontal range increases d decreases and horizontal range increases remains constant and horizontal range decreases

Name: 7. For a javelin thrower to maximize her throwing distance, she shoul
Uploaded: 2024-03-20T06:57:47.000Z
Channel: Bartleby
Description: 7. For a javelin thrower to maximize her throwing distance, she should release the javelin at an angleaof 458b.of less than 45Eof greater than 45d dependent on the javelin's speed upon releasee dependent on the thrower's strength8. For a projectile

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

7
3. Two mobile containers, A and B, carries raw materials for concrete batching plant. The containers' motions are defined by their velocity vectors: for container A, A = 6i + 4k (km/hr) and for container B, B = -4i +7k (km/hr). What is the angle between the line of action (path) of both containers? Express your answer in units of degree.
A projectile is launched at ground level with an intial vertical velocity of 25.0m/s and a horizontal velocity of 43.3m/s. It strikes a target above the ground 3.00 seconds later. a) How high is the target above the gound? b) How far did the projectile travel before hitting the target? c) What is the horizontal component of the velocity of the projectile right as it hits the target? d) What is the vertical component of the velocity of the projectile right as it hits the target?
24. A shell is fired with a horizontal velocity in the positive x direction at a speed of 330 m/s from the top of an 80- m high cliff. The shell strikes the ground 1330 m from the base of the cliff. What is the magnitude of the velocity of the shell as it hits the ground? Hint: you need to determine horizontal and vertical components of the final velocity first, from the kinematic equations, then calculate magnitude of the velocity. While the horizontal velocity remains constant, the vertical velocity does not. You will need time of flight to determine the latter. 80 m 1330 m A) 4.0 m/s B) 9.8 m/s B) 9.8 m/s C) 82 m/s D) 170 m/s (E) 332 m/s
A projectile is launched from point A with speed Vo = 22 m/s. Determine the value of the launch angle a which maximizes the range R indicated in the figure. Determine the corresponding value R. 22 m/s A 22.3 m 35 m R-
14) A plane, diving with constant speed at an angle of 53.0° with the vertical, releases a projectile at an altitude of 730 m. The projectile hits the ground 5.00 s after release. What is the speed of the plane?
2. A football kicker is attempting to make a 190 ft field goal. If the launch angle of the football is 35°, what is the minimum initial speed u which will allow the kicker to succeed? NOT allowed to use Chegg or other such websites. 12 ft 9. 190 ft e Type here to search LOUC Lenovo F11 Esc AI F9 F10 F5 F6 F7 F8 F3 F4 ol
Please solve this question as fast as possible, thank you.
6. A projectile is launched at ground level with an initial speed of 46.0 m/s at an angle of 35.0° above the horizontal. It strikes a target above the ground 2.70 seconds later. What are the x and y distances from where the projectile was launched to where it lands? 7. A ball is thrown horizontally from the top of a 54.0-m building and lands 117.3 m from the base of the building. Ignore air resistance. (Assume the ball is thrown in the +x direction and upward to be in the +y direction.) (a) How long (in s) is the ball in the air? s (b) What must have been the initial horizontal component of the velocity (in m/s)? (Indicate the direction with the sign of your answer.) m/s (c) What is the vertical component of the velocity (in m/s) just before the ball hits the ground? (Indicate the direction with the sign of your answer.) m/s (d) What is the velocity (in m/s) (including both the horizontal and vertical components) of the ball just before it hits the ground? magnitude…
3. A baseball player throws a 145g ball toward home-plate from the out-field. The throw was made at 30.0m/s, 30.0° above horizontal [South]. If the baseball player releases the ball 2.45m above the ground; a. Determine the velocity (speed and direction) at the moment the ball strikes the 'turf (ground). b. Determine the time at which the ball possessed a minimal amount of kinetic c. Determine minimum level of kinetic energy for the ball throughout its flight. | energy.
3. Consider a ball undergoing a 2D projectile motion, whose position (unit: m) as a function of time (unit: s) is 3(t) = tî + (V3t – 5t²)ĵ, where t stands for time. (a) Find the initial launch angle of the projection. (b) Find the speed of the ball when it lands on the ground.
The vertical component of the velocity at the moment the ball is kicked is: