Question #2 A ball is rolling down one hill and up another as shown. Points A and B are at the same height. How do the velocity and acceleration change as the ball rolls from point A to point B? a) The velocity and acceleration are the same at both points. b) The velocity and the magnitude of the acceleration are the same at both points, but the direction of the acceleration is opposite at B to the direction it had at A. c) The acceleration and the magnitude of the velocity are the same at both points, but the direction of the velocity is opposite at B to the direction it had at A. d) The horizontal component of the velocity is the same at points A and B, but the vertical component of the velocity has the same magnitude, but the opposite sign at B. The acceleration at points A and B is the same. e) The vertical component of the velocity is the same at points A and B, but the horizontal component of the velocity has the same magnitude, but the opposite sign at B. The acceleration at points A and B has the same magnitude, but opposite direction.

Question #2 A ball is rolling down one hill and up another as shown. Points A and B are at the same height. How do the velocity and acceleration change as the ball rolls from point A to point B? a) The velocity and acceleration are the same at both points. b) The velocity and the magnitude of the acceleration are the same at both points, but the direction of the acceleration is opposite at B to the direction it had at A. c) The acceleration and the magnitude of the velocity are the same at both points, but the direction of the velocity is opposite at B to the direction it had at A. d) The horizontal component of the velocity is the same at points A and B, but the vertical component of the velocity has the same magnitude, but the opposite sign at B. The acceleration at points A and B is the same. e) The vertical component of the velocity is the same at points A and B, but the horizontal component of the velocity has the same magnitude, but the opposite sign at B. The acceleration at points A and B has the same magnitude, but opposite direction.

Name: Question #2A ball is rolling down one hill and up another as shown. P
Uploaded: 2024-03-05T11:56:34.000Z
Channel: Bartleby
Description: Question #2A ball is rolling down one hill and up another as shown. Points A and Bare at the same height. How do the velocity and acceleration change asthe ball rolls from point A to point B?a) The velocity and acceleration are the same at both poin

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter7: Rotational Motion And Gravitation

Section: Chapter Questions

Problem 12CQ: A child is practicing for a BMX race. His speed remains constant as he goes counterclockwise around...

See similar textbooks

Similar questions

A child is practicing for a BMX race. His speed remains constant as he goes counterclockwise around a level track with two nearly straight sections and two nearly semicircular sections, as shown in the aerial view of Figure CQ7.12. (a) What are the directions of his velocity at points A, B, and C? For each point, choose one: north, south, east, west, or nonexistent, (b) What are the directions of his acceleration at points A, B, and C? Figure CQ7.12
A child is practicing for a BMX race. His speed remains constant as he goes counterclockwise around a level track with two nearly straight sections and two nearly semicircular sections, as shown in the aerial view of Figure CQ7.12. (a) What are the directions of his velocity at points A, B, and C? For each point, choose one: north, south, east, west, or nonexistent, (b) What are the directions of his acceleration at points A, B, and C? Figure CQ7.12
1. 3.A helicopter blade spins at exactly 100 revolutions per minute. Its tip is 5.00 m from the center of rotation. (a) Calculate the average speed of the blade tip in the helicopter's frame of reference. (b) What is its average velocity over one revolution? 2. Acceleration is the change in velocity over time. Given this information, is acceleration a vector or a scalar quantity? Explain. 3. A commuter backs her car out of her garage with an acceleration of (a) How long does it take her to reach a speed of 2.00 m/s? (b) If she then brakes to a stop in 0.800 s, what is her deceleration
Read and analyze the problem below then solve. Show a complete solution with illustration. 1. The range R of a projectile fired at an acute angle e with the horizontal and with an initial velocity of v meters per second is given by R=V²/g sin20 where g is the acceleration due to gravity, which is 9.81 m/sec² near the Earth's surface. An archer targets an object 100 meters away from her position. If she positions her arrow at an angle of 32° and releases the arrow at the speed of 30 m/sec. will she hit her target? (Show your calculations.)
A particle travels along two semicircles of radius 8 m as shown in the figure. If it starts from rest at point A and its velocity increases at a rate of 2 m/s2. Determine:a) the time it takes to reach Bb) The magnitude of its acceleration
Car A is traveling on a straight road while car B is moving along a circular exit ramp with a radius of 90 m, Figure 2. A's speed is increasing at a rate of 2 m / s2 and the speed of B is decreasing at a rate of 1.2 m / s2. For the indicated position, determine the velocity of B relative to A.
jake kicks a soccer ball at an angle of 25 degrees from the ground. the ball lands on the ground 30 meters away, 2.3 seconds later. what is the magnitude of the ball's total initial velocity (at the 25 degree angle)? what is the initial velocity of the ball in the y direction?
Question Read and analyze the problem below then solve. Show a complete solution with illustration. 1. The range R of a projectile fired at an acute angle e with the horizontal and with an initial velocity of v meters per second is given by R=V²/g sin2∅ where g is the acceleration due to gravity, which is 9.81 m/sec² near the Earth's surface. A. An archer targets an object 100 meters away from her position. If she positions her arrow at an angle of 32° and releases the arrow at the speed of 30 m/sec. will she hit her target? (Show your calculations.) b. If sin ∅=2/5 solve for v when R = 50
1.An archer shoots an arrow horizontally at a target 15 m away.The arrow is aimed directly at the center of the target, but it hits52 cm lower. What was the initial speed of the arrow? Graph and Explains.
A car is traveling counterclockwise along a circular bend in the road with an effective radius of 200 m. At a certain instant, the car’s speed is 20 m/s, but it is slowing down at a rate of 1.0 m/s2. What is the magnitude of the car’s acceleration?
2. How did velocity (v) and velocity squared (v2) relate to the height from which the ball was released? Which one, if any, was linearly related to the height?
help with two part question A) If a car drives off a cliff horizontally with a speed of 137 m/s from a height of 26 m, how far will the car travel in the x-dir? B) If a car drives off a cliff horizontally with a speed of 127 m/s from a height of 27, how far will the car travel in the x-dir?