Every object has a point where all its mass appears to be concentrated. This point is known as its centre of mass (CoM). An object will fall over if its centre of mass is not over its base. COM W Peter had a number of identical wooden blocks. He placed one block on the edge of the table with one quarter of the block hanging over the edge. He started stacking others on top with a quarter of each block hanging over the edge of the previous one. What is the greatest number of blocks he can stack like this without any falling off? (A) (B) (C) (D) 3 4 >5

Every object has a point where all its mass appears to be concentrated. This point is known as its centre of mass (CoM). An object will fall over if its centre of mass is not over its base. COM W Peter had a number of identical wooden blocks. He placed one block on the edge of the table with one quarter of the block hanging over the edge. He started stacking others on top with a quarter of each block hanging over the edge of the previous one. What is the greatest number of blocks he can stack like this without any falling off? (A) (B) (C) (D) 3 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)...

See similar textbooks

Similar questions

A 10 g bullet moving at 1,000 m/s goes through a 1.0 kg block. If the bullet goes through the block and comes out at a velocity of 711 m/s, determine the maximum height the block rises to. Use g = 10 N/kg.
H4
A 2.5 kg car is moving towards the right at 4 m/s collides head-on with 6.5 kg car moving towards the left at 2 m/s, and they stick together. What is the velocity of combined cars after the collision?
What is the Y-component of the of the sculpture ?
A children’s toy consists of five disks that stack together as shown in the diagram. Each disk has a height, h. The bottom disk has a mass 5m, the next disk a mass 4m, and so on with the top disk having a mass m. How far up the y-axis from the bottom (labelled y = 0) is the center-of-mass?
A cylinder sits on top of a cube. How far above the table's surface is the center of mass of the combined object.
A 0.6 N bullet with a velocity of 500 m/s strikes a 90 N block of wood moving at 10 m/s in the directionopposite the bullet. If the bullet imbeds in the block, determine the resulting velocity.
Jill threw a dodgeball completely horizontal in x-direction with velocity of +5 m/s and mass of .5 kg. At the same time her friend threw a dodgeball with the same mass in the -x direction and a velocity of -2 m/s. The balls hit each other, and Jill's ball was deflected 30° above the original path, while her friend's deflected 20⁰. below the initial path. a. Ignoring gravity, solve the velocity of each ball after the collision, using a free body diagram. b. If both balls had a magnitude of 3 m/s, how much kinetic energy was "lost" during the collision?
H1
Q8.
A 10,000 kg train car moving to the right at +5 m/s strikes a 10,000 kg train car, initially at rest. On collision the cars link up and move together. What is their final velocity
Please help