.A stone is dropped into a well and 4.5 seconds later the sound of the splash is heard. Then asecond stone is thrown down into the well with an initial velocity Vo and the sound of thesplash is heard in 4 seconds. If the velocity of sound is constant at 1120 fps, determine the initialvelocity of the second stone.a. Identify the type of motion-defined in the problem.b. Set up the equations of motion that are required to solve the problem.c. Solve for the unknown variables by substituting the given in the equations of motionthat has been set up previously

In this case, the first stone is dropped with zero initial velocity whereas the second is thrown…

Answered: .A stone is dropped into a well and 4.5…

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)...

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7. A ball is dropped freely from the top of a building. It was found that the ball hits the ground after 16.5 seconds. a. How tall was the building? b. What is the ball's velocity as it strikes the ground?
A truck is moving at +35.0 m /s when the driver sees a red light. In 2.60 seconds, the truck comes to a stop. A. Find the truck's acceleration (magnitude and direction). B. Find the truck's displacement(magnitude and direction).
2. The position of a drone as a function of time is given by *(t) = ( 8 i + 1.5 k) + (-3 î + 2 j) t – 0.5 t2 j The units are missing in the constant coefficients above, i.e., "0.5" should be "0.5 m/s2". Include the correct units on all the constant coefficients in your answers below. a. What is the x-position of the drone as a function of time? b. What is the y-position of the drone as a function of time? c. How far away is the drone from its starting position at t = 3s? d. What is the acceleration vector? е. What is the velocity vector as a function of time? (One way to do this is to take the time derivative of the position vector.) f. Make a sketch of the x, y, and z positions of the drone as function of time. You just need the general shape. time time time
Constant Velocity Table: Distance Time (s) Distance (cm) Total Time (s) Total Displacement (cm) Average Velocity (cm/s) Interval 1 444 7.4 2 1/60 7.4 1/60 444 3 2/60 16.3 1/60 648 10.8 4 3/60 27.1 1/60 648 5 4/60 38.6 1/60 798 13.3 6 5/60 51.9 1/60 798 7 6/60 65.4 1/60 666 11.1 8 7/60 76.5 1/60 666 9 8/60 88.1 1/60 516 8.6 10 9/60 96.7 1/60 516
a. What is the acceleration for the first 10 seconds? b. What is the acceleration for the from 10 seconds to 30 seconds duration? c. What is the change in displacement between t = 10 s and t = 30 s?
A. Answer the following questions correctly. 1. Can a displacement from one point to another be zero, yet the distance involved in moving these points be non-zero? Can the distance between two points be zero, yet the displacement from one point to the other be non-zero? Explain. Can the velocity of an object be in different direction than the acceleration? Give example. Explain how a body moves with (a) uniform motion, and (b) uniformly accelerated motion. Is it possible for a body to accelerate when its velocity is constant? Explain. 4. 5. If an object has a greater speed, does it necessarily have a greater acceleration? Explain using examples. 2. 3.
A weight is oscillating up and down on spring. It's displacement from rest is given by the function d(t)=sin6t-4cos6t, where d is in centimetres and t is time in seconds. a. what is the rate of change of the displacement after 1s b. Determine the maximum and minimum displacements and when they first occur.
Situation 01. A car is traveling due East at a rate of 36.2 kph and a train is due North at a speed of 74.70 kph and bound to meet at an intersection 1 km for the train and the car . a . Determine the acceleration of the car , if the car reaches the intersection 10 seconds ahead of the train . b . Determine the velocity of the car at the intersection .
You measure the motion of a dynamics cart using a motion sensor. You then plot the cart’s position vs. time and velocity vs. time. The best way of finding the average acceleration of the cart is to find: a. the y-intercept of the position vs. time plot. b. the y-intercept of the velocity vs. time plot. c. the slope of the position vs. time plot d. the slope of the velocity vs. time plot. e. none of the above
22. A. A car moving at 20m/s accelerated for 3 seconds at a rate of 5 m/s/s. What is the final velocity of the car? B. How far did the car travel during these 3 seconds?
An object moves 60.0 m [E 75.0° N] and then 50.0 m [E 45.0° S].a. Determine the object’s total displacement using graphing scaled diagram.b. Determine the object’s total displacement using component methodc. Determine the object’s total displacement using sine and cosine law.
A vehicle running at a speed of 40 m/s decelerates andstops after 10 s. a. What is the acceleration of the vehicle? b. What is the distance covered by the vehicle? c. What is the final speed of the vehicle?

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