Please answer asap. Thumbs up if correct. 1. A pendulum bob is released from rest at A such that it Is directly to the right of itscenter of rotation and that the cable is completely taut. It then swings from A to C andvice versa. Which of the following statements is/are TRUE about the acceleration ofthe bob at the instant it is released at A?I.The acceleration of the bob is zero.II. The acceleration of the bob is nonzero.II. The acceleration of the bob is purely horizontal.IV. The acceleration of the bob is purely vertical.ABIl and IV only +Il and IV onlyIl onlyI onlyIl and III onlypon by two forces: a 3N vertical force and a 4 N horizontal force as shown

Answered: Image /qna-images/answer/8a128fe9-9af8-45b6-8ed8-2f87388e596e.jpg

1. A pendulum bob is released from rest at A such that it Is directly to the right of its center of rotation and that the cable is completely taut. It then swings from A to C and vice versa. Which of the following statements is/are TRUE about the acceleration of the bob at the instant it is released at A?

1. A pendulum bob is released from rest at A such that it Is directly to the right of its center of rotation and that the cable is completely taut. It then swings from A to C and vice versa. Which of the following statements is/are TRUE about the acceleration of the bob at the instant it is released at A?

Physics for Scientists and Engineers with Modern Physics

10th Edition

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter4: Motion In Two Dimensions

Section: Chapter Questions

Problem 25P

See similar textbooks

Similar questions

A bolt drops from the ceiling of a moving train car that is accelerating northward at a rate of 2.50 m/s2, (a) What is the acceleration of the bolt relative to the train car? (b) What is the acceleration of the bolt relative to the Earth? (c) Describe the trajectory of the bolt as seen by an observer fixed on the Earth.
An astronaut on the surface of the Moon fires a cannon to launch an experiment package, which leaves the barrel moving horizontally. Assume the free-fall acceleration on the Moon is one-sixth of that on the Earth. (a) What must the muzzle speed of the package be so that it travels completely around the Moon and returns to its original location? (b) What time interval does this trip around the Moon require?
A spoils car is advertised to have a maximum cornering acceleration of 0.85 g. (a) What is the maximum speed that the car can go around a curve with a 100-m radius? (b) What is its maximum speed for a 50-m radius curve? (c) If wet pavement reduces its maximum cornering acceleration to 0.6 g, what do the answers to (a) and (b) become?
An express train passes through a station. It enters with an initial velocity of 22.0 m/s and decelerates at a rate of 0.150 m/s2 as it goes through. The station is 210 m long. (a) How long is the nose of the train in the station? (b) How fast is it going when the nose leaves the station? (c) If the train is 130 m long, when does the end of the train leave the station? (d) What is the velocity of the end of the train as it leaves?
Standing at the base of one of the cliffs of Mt. Arapiles in Victoria, Australia, a hiker hears a rock break loose from a height of 105 m. He can't see the rock right away but then does, 1.50 s later. (a) How far above the hiker is the rock when he can see it? (b) How much time does he have to move before the rock hits his head?
A speedboat moving at 30.0 m/s approaches a no-wake buoy marker 1.00 102 m ahead. The pilot slows the boat with a constant acceleration of 3.50 m/s2 by reducing the throttle. (a) How long does it take the boat to reach the buoy? (b) What is the velocity of the boat when it reaches the buoy?
A jet fighter pilot knows he is able to withstand an acceleration of 9g before blacking out. The pilot points his plane vertically down while traveling at Mach 3 speed and intends to pull up in a circular maneuver before crashing into the ground. (a) Where does the maximum acceleration occur in the maneuver? (b) What is the minimum radius the pilot can take?
Galileo thought about whether acceleration should be defined as the rate of change of velocity over time or as the rate of change in velocity over distance. He chose the former, so lets use the name vroomosity for the rate of change of velocity over distance. For motion of a particle on a straight line with constant acceleration, the equation v = vi + at gives its velocity v as a function of time. Similarly, for a particles linear motion with constant vroomosity k, the equation v = vi + kx gives the velocity as a function of the position x if the particles speed is vi at x = 0. (a) Find the law describing the total force acting on this object of mass m. Describe an example of such a motion or explain why it is unrealistic for (b) the possibility of k positive and (c) the possibility of k negative.
1. An object is at x = -10 m moving at a constant velocity of 10 m/s. What would be the position of the body after 10 seconds? 2. Two siblings, Kaeya and Diluc, decided to take a walk around Mondstadt, following its perimeter guarded by walls. For those who haven't seen Mondstadt, you can imagine it as a city of walls with beautiful German architecture. Let's roughly assume that the walls are encircling it in a perfect circle. Both Kaeya and Diluc started at the front of the huge city gate (marked at 0 degrees), and they walk separately, away from each other. Assuming that radius of the circular city of Mondstadt to be 500 m, and the constant walking speed of both siblings to be 0.5 m/s, how long until the siblings achieve the greatest separation distance between them? 3. Please refer to the following vectors:A = 6i + 2j - 3kB = 3i - j - 2kC = -i + j - 4kD = j - 3kE = -i + 2kF = -5kG = 2iH = -3jI = -4i +4j Find the projection of vector C on vector D. 4. You throw a glob of putty…
1. If you walk 500 m due North and then 200 m due South,a. What is your total distance covered?b. What is your displacement? 2. A spacecraft traveling at 1200 m/s is uniformly accelerated at the rate of 150 m/s2 by burning itssecond stage rocket. If the rocket burns for 18 seconds, what is the final speed of the craft?
Suppose a rocket ship in deep space moves with constant acceleration equal to 9.8 m/s2, which gives the illusion of normal gravity during the flight. (a) If it starts from rest, how long will it take to acquire a speed 0.25 times that of light, which travels at 3.0 ✕ 108 m/s? ______s(b) How far will it travel in so doing? ________km
1. a 100kg astronaut (including the space suit) becomes untethered during a space walk and drifts to a distance of 10m from the mother ship. To get back to the ship, he throws his 2.5kg tool kit away with an acceleration of 8.0ms-1 that acts over 0.50s. a) How does throwing the tool kit away help the astronaut in the situation? b) How large is the fact that acts on the tool kit and the astronaut? c) With that speed will the astronaut drift to the mother ship? d) How long will it take for the astronaut to reach the ship?