A ball is thrown down vertically with an initial speed of 20 m/s from a height of 60 m. Find (a) its speed just before it strikes the ground and (b) how long it takes for the ball to reach the ground. Repeat (a) and (b) for the ball thrown directly up from the same height and with the same initial speed. Take g = 10 m/s².

A ball is thrown down vertically with an initial speed of 20 m/s from a height of 60 m. Find (a) its speed just before it strikes the ground and (b) how long it takes for the ball to reach the ground. Repeat (a) and (b) for the ball thrown directly up from the same height and with the same initial speed. Take g = 10 m/s².

Name: 6. A ball is thrown down vertically with an initial speed of 20 m/s f
Uploaded: 2024-03-20T06:57:47.000Z
Channel: Bartleby
Description: 6. A ball is thrown down vertically with an initial speed of 20 m/s from a height of 60m. Find (a) its speed just before it strikes the ground and (b) how long it takes forthe ball to reach the ground. Repeat (a) and (b) for the ball thrown directly

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter2: Motion In One Dimension

Section: Chapter Questions

Problem 2.13OQ: A student at the top of a building of height h throws one ball upward with a speed of i and then...

See similar textbooks

Similar questions

of the ball when the goale bas vied muotizem z 2000 jeval alg Question 6. A golf ball rolls off a horizontal cliff with an initial speed of 10.3 m/s. The ball falls a vertical distance of 11.6 m into a lake below. (a) How much time does the ball spend in the air? (b) What is the speed v of the ball just before it strikes the water? Ans: 1.54 s; 18.36 m/s
7. A student throws a water balloon vertically downward from the top of a building. The balloon leaves the thrower's hand with a speed of 12m/s (a) What is its speed after falling freely for 1.5 s? (b) How far does it fall in 1.5 s? (c) What is the magnitude of its velocity after falling 10.0 m?
A girl is standing at the edge of a cliff 100. m above the ground. She reaches out over the edge of the cliff and throws a rock straight upward with a speed 8.00 m/s. a) How long does it take the rock to hit the ground? b) What is the speed of the rock the instant before it hits the ground?
H.W: A ball thrown up from a rooftop of height 40m lands on ground in 4s. (a)what is its maximum height above the ground? (b)what is its velocity 15m below the rooftop? Ans. (a)44.7m (b) v = -19.65 ! H.W: An object is thrown horizontally at 20m/s from a cliff top 45m above sea level. Find (a)the time to land; (b)the angle at which it hits the water; (c)the speed at which it hits the water. Ans. (a)3.03s (b)0 = -54.73 (c)35.79m/s
Butch and Sundance are standing on the edge of a cliff, arguing about whether ornot they should jump into the water below. Butch drops a small rock and is able to count to 7-Mississippi (i.e., 7 seconds) before it hits the water. Assume g=10 m/s2.Ignore air resistance.a) If they were to jump, how fast would they be going just before they hit the water?(in m/s)b) How high is the cliff in meters?c) Transform the velocity in a) to mi/hr and the height in b) to feet. Would you jump?
A small rock is thrown vertically upward with a speed of22.0 m/s from the edge of the roof of a 30.0-m-tall building. The rockdoesn’t hit the building on its way back down and lands on the streetbelow. Ignore air resistance. What is the speed of the rock just before it hits the street?
H.W: A ball thrown up from a rooftop of height 40m lands on ground in 4s. (a) what is its maximum height above the ground? (b) what is its velocity 15m below the rooftop? Ans. (a) 44.7m (b) v = -19.65
A rock is thrown vertically upward with a speed of 13.0 m/sm/s from the roof of a building that is 70.0 mm above the ground. Assume free fall. What is the speed of the rock just before it strikes the ground? I will rate accordingly with multiple votes. Please do it correctly.
A girl is standing at the edge of a cliff 100. m above the ground. She reaches out over the edge of the cliff and throws a rock straight upward with a speed 8.00 m/s. a) How long does it take the rock to hit the ground? b) What is the speed of the rock the instant before it hits the ground? Please type answer
Problem 2. A ball is thrown straight upward in the air at a speed of 15.0 m/s. Ignore air resistance. (a) What is the maximum height the ball will reach? Use g= 9.8 m/s. (b) How long will it take to reach 5.00 m above its initial position on the way down? Droblom 3
An attacker at the base of a castle wall 3.55 m high throws a rock straight up with speed 8.30 m/s from a height of 1.60 m above the ground. (a) Will the rock reach the top of the wall? Yes O No (b) If so, what is its speed at the top? If not, what initial speed must it have to reach the top? m/s (c) Find the change in speed of a rock thrown straight down from the top of the wall at an initial speed of 8.30 m/s and moving between the same two points. m/s (d) Does the change in speed of the downward-moving rock agree with the magnitude of the speed change of the rock moving upward between the same elevations? O Yes No (e) Explain physically why it does or does not agree.
C2. A dynamite blast blows a heavy rock straight up in the air with a launch velocity of 192 feet/sec. It reaches a height ofs =192t-16t2 feet after t seconds. (a) How high does the rock go? (b) What are the velocity and speed of the rock when it is 512 feet above the ground on the way.up? On the way down? (c) How long is the rock aloft? DELL