Armed forces

1. How do you adjust the pulling force of the mousetrap? Adjusting the length of the snapper will change the pulling force—making something move as it goes in a certain direction. Making the snapper on the mousetrap longer will decrease the pulling force and a shorter snapper will increase it.…

to have originated in China as early as the fourth century, the trebuchet was the first war machine to use gravitational and leverage principles to launch a projectile. A catapult uses the elasticity of different materials to provide the launching force, like a bow or slingshot,…

following events related to untochable force: (1) coconuts falling from the tree to the ground (2) Attract magnetic iron plates (3) footwear be worn after long use (4) Budi push the beam to shift to the right The above events involving untouchable force is the number of events .... a. 1 and 2 b. 1 and 3 c. 2 and 4 d. 4 2. Amir and Badu are playing tug of war. Amir pull to the left with a force of 200 N while Badu pull to the right by the force of 350 N. resultant force generated is .... A. 150…

INTRODUCTION • Energy is a scalar quantity. • It was first hypothesized by Newton to express kinetic and potential energies. • We cannot observe energy directly, but we can measure it using indirect methods and analyze its value. • Energy may be in different forms, such as potential, kinetic, magnetic or electrical. Potential energy of a system is by virtue of its location with respect to gravitational field. If an object has a mass m, located at elevation h, and acceleration due to gravity is g…

While designing any aerodynamic body an unspoken assumption of bilateral or mirror symmetry is taken into consideration. Argument against this bilateral symmetry states that “once the velocity of sound is exceeded, the laws of aerodynamics change in such a way as to make it seem inadvisable to arrange the components of an airplane side by side or abreast in a supersonic stream unless there are compelling reasons for such an arrangement.“ 2.1.1 Wave Drag This type of drag is formed as a result…

IV. Mechanical analysis for the manipulator arm In this section, the static analysis, forward kinematics and inverse kinematics for the manipulator arm will be discussed. A. Static Analysis The static analysis is very significant in manipulator’s design to roughly approximate the required torques from each motor. In our design, it is important to check the stability of the quadcopter that the manipulator is integrated on it in terms of manipulator arm center of mass shifting as function of…

Stress: Stress is defined as ‘’the force across a boundary per unit area, for all orientations of that boundary.’’ It is derived from force, a physical quantity and area, a geometrical quantity. Therefore, stress is also characterized as a fundamental quantity, like velocity, energy, etc. that can be brought under quantification and can be analyzed without any obvious attention of the physical grounds of the material or of its nature. Example: When a solid bar is supporting a load, each…

its potential energy? When the pendulum of a clock swings back and forth, the pendulum reaches its maximum potential energy at the top of the swing, and it reaches its maximum kinetic energy at the bottom of the swing. In the absence of frictional forces, the pendulum’s kinetic energy will be equal to its potential energy at the bottom of the swing. 2. What is the difference between energy conservation and the principle of the conservation of energy? Give some examples of each. The difference…

Meshing of knuckle joint Figure 8.1 meshing of knuckle joint 8.2 Constraints applied on knuckle joint for analysis Figure 8.2 constraints applied on knuckle joint CONCLUSION After studying knuckle joint used in tractor-trailer then after making design and analysis of knuckle joint for stresses and deflection the following conclusions can be drawn: From the above results and discussion, Knuckle joint was design for 52860 N axial load by theoretical calculation. From theoretical…

Static stability assessment with existing IMO A 469 criteria The primary objective of this section is to assess the static stability of the AHV during AHOs. Intact vessel capsizing prevention is a fundamental principle of fulfilling the ship stability requirement. The stability of a vessel is universally presented with a static stability curve, which describes the overturning moment required to incline a vessel to various angles for a given loading condition. This curve in principle similar to…