11. A mouse and a rat are at opposite ends of a horizontal bar whose length is 0.8 m and which can rotate about a point at its center. The mass of the mouse is 200 grams and the mass of the rat is 500 grams. The rat is let go and the rod rotates into a vertical position. What is the velocity of the rat when it is at its lowest position? 2 (a) 2.5 m/s (b) 4.3 m/s (c) 1.8 m/s (d) 3.1 m/s

11. A mouse and a rat are at opposite ends of a horizontal bar whose length is 0.8 m and which can rotate about a point at its center. The mass of the mouse is 200 grams and the mass of the rat is 500 grams. The rat is let go and the rod rotates into a vertical position. What is the velocity of the rat when it is at its lowest position? 2 (a) 2.5 m/s (b) 4.3 m/s (c) 1.8 m/s (d) 3.1 m/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

A bucket of mass equals 18.7 kg(mb) is knocked off the side of a wall. The bucket falls 18.6 m to the bottom of the well. Attached to the bucket is a light rope that wraps around a cylinder of radius equals 48.7 cm and mass(mc) equals 3.26 kg. How fast is the bucket falling just before it hits the ground
B A A E B 0 D E F G 30 m/s 1 5 m/s 5 m/s F G
An angular velocity of 10 rad/s is how many revolutions per minute (RPM)? Which is the answer ? 0.535 RPM 6.28 RMP 27.2 RMP 377 RMP 95.5 RMP
1. If both the mass and speed of an object are doubled while the radius is decreased by 4x, then the centripetal force is? 2. A 5 kg object has a kinetic energy of 90 Joules. What is the speed of this object? 3. The momentum of a 500 g object is 2000 kg m/s. What is the speed of this object? 4. A ball is thrown straight upward at an initial speed of 70 m/s. What is the acceleration of the object after 13 seconds? 5. An object is thrown straight upward with a speed of 90 m/s. What is the speed of the object after 13 seconds?
A skater is trying to perform a Triple revolution jump. His vertical take off speed is 2.6 m/s. How fast does he have to spin in the air to complete the triple revolution? (Assuming g=9.8 m/s²) 5.66 rps 11.3 rps 3.0 rps 2.83 rps
A 15 foot ladder is resting against the wall. The bottom is initially 10 feet away from the wall and is being pushed towards the wall at a rate of 4 ft/sec. How fast is the top of the ladder moving up the wall 12 seconds after we start pushing? 2.
11. A 450 g model rocket is on a cart that is rolling to the right at a speed of 4 m/s. The rocket engine, when it is fired, exerts a 6 N vertical thrust on the rocket. Your goal is to have the rocket pass through a small horizontal loop that is 22 m above the ground. At what horizontal distance left of the loop should you launch?
24 and 25 plssss
a. To lift heavy bricks from the ground to a rooftop, the bricks are placed in a container that is attached to one end of a rope that wraps around a rod coupled to the shaft of a motor. When the motor runs, the buckets will rise. i. Calculate the diameter of the rod so that the bricks can be raised at a constant speed of 3.5 km/h when the motor is running at 490 revolutions per minute? ii. If the bricks are to have an upward acceleration of 0.65 m/s2, calculate the angular acceleration of the rod.
1. I am driving my 3500 pound weight car at 45 mph around a flat curve of radius 50 meters. If the us = 0.85, do I make it around the curve? (Y/N). It starts raining and the us drops to .65. Do I make it now? (Y/N). At that speed what is the kinetic energy of my car? Joules 2. Tom is doing a bucket lab with a mass of 5 kg of water. If he swings it 8 times around in 8 seconds and his arm is 0.8 meters long, what centripetal force is the bucket putting on his shoulder? Does the water fall on him? Newtons. _(Y/N). If he were on Mars (m-6.42*10^23 Kg, R=3397000 meters) would he get wet? 3. You are working on a pumped storage facility design. You have a pond on top of a hill. You approximate the pond as a cylinder with a diameter of 1500 feet and an average depth of 20 feet. The center of the pond is 300 feet above a river where you will let the pond full of water flow thru a turbine making electricity. What is the GPE of the pond? joules
A small object of mass 0.500 kg is attached by a 0.840 m-long cord to a pin set into the surface of a frictionless table top. The object moves in a circle on the horizontal surface with a speed of 8.80 m/s. What is the magnitude of the radial acceleration of the object?