A ball is thrown from a point 1.0 m above the ground. The initial velocity is 20.5 m/s at an angle of 25.0° above the horizontal. (a) Find the maximum height of the ball above the ground. m (b) Calculate the speed of the ball at the highest point in the trajectory. m/s
a)
motion along vertical
h = ho + ( u sin x)^ 2/ 2g
h = 1 + ( 20.5 sin 25 ^2 / 19.6
h = 4.829 m
=====
b)
at highest point only horizontal component of velocity acts
v = vx = 20.5 cos 25 = 18.58 m/s
=====
Comment in case any doubt, will reply for sure. Goodluck
A ball is thrown from a point 1.0 m above the ground. The initial velocity is...
A ball is thrown from a point 4.5 m above the ground. The initial velocity is 19.3 m/s at an angle of 12.1o above the horizontal. Find the maximum height of the ball above the ground.
A ball is thrown from an initial height of 3.2 m above the ground. Its initial velocity is 6.5 m/s at an angle of 22◦ above the horizontal. (a) How much time does the ball spend in the air? (b) How much time does it take for the ball to reach its maximum height? Take g = 9.81 m/s2
1. A ball is thrown with an initial velocity of 25.0 m/s in a direction that makes a 32.0° angle with the horizontal (Assume it was thrown from ground level). a. What is the maximum height of the ball relative to the ground? b. What is the velocity (magnitude and direction) of the ball att-0,708 s
A ball is thrown from the ground onto a roof of height yroof 16 m from a distance of x 7 meters away as shown in the diagram to the left. The maximum height of the ball's trajectory is ymax 3.2 meters above the top of the roof. Standard Exercise Roof Toss Standard Exercse Cliff Toss 1) Find the required initial vertical component of the velocity, V vy 0 m/s Submit Help 2) Find the time for the ball to...
A ball is thrown vertically upwards with an initial velocity of 18.80 m/s, from the ground. How long is the ball in the air? (Neglect air resistance.) What is the greatest height reached by the ball? Calculate the time at which the ascending ball reaches a height of 12.8 m above the ground. A rocket, initially at rest on the ground, accelerates straight upward with a constant acceleration of 53.0 m/s^2, until the fuel is used up after 6.80s. What...
A ball is thrown from a height of 20 meters with an initial velocity of 10 m/s at an angle of 30° above the horizontal. Assume air resistance is negligible. (a) Find the x and y components of the ball's initial velocity. (b) What is the maximum height in meters reached by the ball? (c) For how many seconds is the ball in the air?
PRACTICE IT Use the worked example above to help you solve this problem. A ball is thrown upward from the top of a building at an angle of 30.00 to the horizontal and with an initial speed of 19.0 m/s. The point of release is h = 46.0 m above the ground. (a) How long does it take for the ball to hit the ground? 4.183 (b) Find the ball's speed at impact. 35.532 m/s (c) Find the horizontal range...
A ball is thrown from the top of a building with an initial velocity of 23.7 m/s straight upward, at an initial height of 52.0 m above the ground. The ball just misses the edge of the roof on its way down, as shown in the figure. (a) Determine the time needed for the ball to reach its maximum height. s (b) Determine the maximum height. m (c) Determine the time needed for the ball to return to the height...
A ball is thrown from a rooftop with an initial downward velocity of magnitude v0 = 1.1 m/s. The rooftop is a distance above the ground, h = 46 m. In this problem use a coordinate system in which upwards is positive. Part (a) Find the vertical component of the velocity, Vfy, in meters per second, with which the ball hits the ground. Part (b) If we wanted the ball's final speed to be exactly 27.3 m/s from what height, hnew (in...
A ball is thrown towards a wall with an initial speed of 25.0 m/s, starting at 8.20 m above the ground. The height of the wall is 10.0 m and it is located 20.0 m from the launch point of the ball. You may assume projectile motion for the ball. (SEE DIAGRAM IN PICTURE BELOW) a) When the ball passes directly above the wall, how high above the wall is it? What is the velocity of the ball when it...