1. What is the displacement of a barrel that was going at 15 m/s before stopping as it reached a wall? The barrel was rolling for 10 seconds. 2. Determine the initial velocity of a bullet if it took 15 seconds to reach a target that is 2000 meters away. The acceleration is identified to be 10.2 m/s/s.

1. What is the displacement of a barrel that was going at 15 m/s before stopping as it reached a wall? The barrel was rolling for 10 seconds. 2. Determine the initial velocity of a bullet if it took 15 seconds to reach a target that is 2000 meters away. The acceleration is identified to be 10.2 m/s/s.

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

You re out in space, on a rotating wheel-shaped space station of radius 679 m. You feel planted firmly on the floor , due to artificial gravity. The gravity you experience is Earth-normal, that is, g = 9.81 m/s^2. How fast is the space station rotating in order to produce this much artificial gravity? Express your answer in revolutions per minute (rpm). 0.120 rpm 81.6 rpm 0.459 rpm 1.148 rpm
If you throw a ball with an initial horizontal velocity of 20 m/s and an initial vertical velocity of 40 m/s. a. What will be the vertical displacement after 3 seconds? b. What will be the horizontal displacement after 3 seconds? c. What will be the vertical velocity after 3 seconds? d. What will be the horizontal velocity after 3 seconds?
# 16. The frequency of a merry go round is 5 times per minute. What is the tangential velocity of the merry go round if it has a radius of 20.0 meters? a. 3.00 m/s b. .050 m/s c. 10.5 m/s d. 6.28 m/s #17. The frequency of a merry go round is 5 times per minute, and it has a radius of 20.0 meters. What is the angular velocity of the merry go round in degrees per second? a. 18.0 degrees/s b. .050 degrees/s c. 30.0 degrees/s d. 60.0 degrees/s
A helicopter blade spins at exactly 110 revolutions per minute. Its tip is 9.5 m from the center of rotation. A. What is the average speed of the blade tip in the helicopter's frame of reference, in meters per second? B. What is the average velocity over one revolution, in meters per second?
You're out in space, on a rotating wheel-shaped space station of radius 1426 m. You feel planted firmly on the floor due to artificial gravity. The gravity you experience is Earth-normal, that is, g = 9.81 m/s^2. How fast is the space station rotating in order to produce this much artificial gravity? Express your answer in revolutions per minute (rpm). 0.083 rpm 118.3 rpm 0.554 rpm 0.792 rpm
1. Refer to figure 1. A spherical shell and solid sphere roll down a ramp with a 30.0° inclination. Calculate the final velocities of each sphere when they reach the bottom and the velocity of each sphere ½ the distance above the ground. 20.0m Solid sphere, about diameter Spherical shell, about diameter R MR² MR²
2. A small ball of mass m is suspended from a string of length l. The ball revolves with constant speed V in a horizontal circle of radius r as shown ( the string sweeps out the surface of a cone ) Find an expression for V. T mg
3. A satellite is launched from the surface of the earth at the initial speed of 8 km/s. How high will it go before it stops and starts falling back to the earth?
1. Consider an object on some trajectory r(t) and define v = r' as the velocity with speed v = [r'|. (a) Show that we can write v = vT. (b) Show that we can write the acceleration as a = arT + anN where ar and an are the tangential and normal acceleration components that are func- tions of the speed and curvature. Explain why an object with constant speed can still experience an acceleration. (c) Consider a trajectory r(t) = (t² – 1,t – t³). Compute the curvature as well as the tangential and normal components of the acceleration.
The 32-inch ceiling fan spins at 60 RPM and accelerates steadily to 130 RPM in nine seconds. A. Determine the speed (ft / s with two decimal places) for the point 15 inches from the center of the fan 16 seconds after the beginning of the above movement. B. Specify the time (s with two decimal places) for the fan to rotate 125 revolutions. Draw a Free Body Diagram if necessary in part A or part B or both. Please urgent ??? thank you
A circular disk of radius 0.010 m rotates at a rate of 5.0 rev/s. What is the acceleration of a point on the edge of the disk? a. 0.31 m/s2 b. 1.6 m/s2 c. 9.9 m/s2 d. 2500 m/s2 e. zero m/s2
787878 A particle moves that is defined by the parametric equations x = 3t² - 1 y = t³ - 3t² + t - 3 (where x and y are in meters, and t is in seconds). a. Compute the radial component of the acceleration (m/s^2) at t = 2 seconds. b. Compute the transverse component of the acceleration (m/s^2) at t = 2 seconds.