6. What speed must you toss a ball straight up so that it takes 6.0 s to return to you? oTenos to llot 2tosido 30teisnin to sonsedo s bssge noitosisooo 7. You toss a ball at 4.5 m/s straight upward. How long will the ball be in the air? AS 257 8. If a projectile fired beneath the water, straight up, breaks through the surface at a

6. What speed must you toss a ball straight up so that it takes 6.0 s to return to you? oTenos to llot 2tosido 30teisnin to sonsedo s bssge noitosisooo 7. You toss a ball at 4.5 m/s straight upward. How long will the ball be in the air? AS 257 8. If a projectile fired beneath the water, straight up, breaks through the surface at a

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Description: How do you solve these questions?This is also just these questions with nothing added to it. Problemsstpd6.What speed must you toss a ball straight up so that it takes 6.0 s to return to you?tTenos to lot 2to0do.9onoteizs1 nin to sonsedo atbssge7.You

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 2.74AP: Two students are on a balcony a distance h above the street. One student throws a ball vertically...

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a student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 18.0 m/s. the cliff is 50.0 m above a flat, horizontal beach as shown in figure p3.23. (a) what are the coor- dinates of the initial position of the stone? (b) what are the components of the initial velocity? (c) write the equations for the x- and y-components of the veloc- ity of the stone with time. (d) write the equations for the position of the stone with time, using the coor- dinates in figure p3.23. (e) how long after being released does the stone strike the beach below the cliffe (f) with what speed and angle of impact does the stone land? 23) e) 3.19 secs f) 36.1 m/s 60.1 degrees below the horizontal
A rescue helicopter is hovering over a person whose boat has sunk. One of the rescuers throws a life preserver straight down to the victim with an initial velocity of 1.40 m/s and observes that it takes 1.8 s to reach the water. (a) List the knowns in this problem. (b) How high above the water was the preserver released? Note that the downdraft of the helicopter reduces the effects of air resistance on the falling life preserver, so that an acceleration equal to that of gravity is reasonable.
Check Your Understanding A rock is thrown horizontally off a cliff 100.0 m high with a velocity of 15.0 m/s. (a) Define the origin of the coordinate system (b) Which equation describes the horizontal motion? (c) Which equation describe the vertical motion (d) What is the rock’s velocity at the point of impact?
Calculate the displacement and velocity at times of (a) 0.500 s, (b) 1.00 s, (c) 1.50 s. (d) 2.00 s, and (e) 2.50 s for a rock thro straight down with an initial velocity of 14.0 m/s from the Verrazano Narrows Bridge in New York City. The roadway of this bridge is 70.0 m above the water.
You throw a ball straight up with an initial velocity of 15.0 m/s. It passes a tree branch on the way up at a height of 7.0 m. How much additional time elapses before the ball passes the tree branch on the way back down?
A swimmer bounces straight up from a diving board and falls feet first into a pool. She starts with a velocity of 4.00 m/s, and her takeoff point is 1.80 m above the pool. (a) How long are her feet in the air? (b) What is her highest point above the board? (c) What is her velocity when her feet hit the water?
You throw a ball vertically upward so that it leaves the ground with velocity +5.00 m/s. (a) What is its velocity when it reaches its maximum altitude? (b) What is its acceleration at this point? (c) What is the velocity with which it returns to ground level? (d) What is its acceleration at this point?
Two students are on a balcony a distance h above the street. One student throws a ball vertically downward at a speed vi, at the same time, the other student throws a ball vertically upward at the same speed. Answer the following symbolically in terms of vi, g, h. and t. (a) What is the time interval between when the first ball strikes the ground and the second ball strikes the ground? (b) Find the velocity of each ball as it strikes the ground, (c) How far apart are the balls at a time t after they are thrown and before they strike the ground?