Deadly force

Could You…? Math Inquiry Pietro Could you run 0.8 kilometres in one minute? The fastest 100m sprint speed record is held by Usain Bolt , reaching the speed of 43.94 kph. 0.8 km is 800 meters. For you to run 800 meters in 1 minute you would need to reach the speed of Usain bolt speed: 43.94 x 800m= 35152 m/s. Though human endurance comes into play as well, as a person cannot run their top speed for more than 8 seconds. Usain Bolt was able to keep 95% of his top speed for 8 seconds during his…

Introduction This practical was an investigation involving the use of a tennis ball and a meter ruler. The tennis ball was held and dropped at a specific height above the ground. The height of the bounce was then measured. This investigation was carried out to find out whether the efficiency of the bounce varied with the height of release of the tennis ball. If the bounce were 100% efficient, then the tennis ball would have bounce off the ground and return to the starting height. Research…

Wire Rope Wire Rope Definition and Types Wire rope is machine composed of individual wires that have been twisted to form strands and work together to achieve optimum results for the selected operation. Strands are then twisted, to form a wire rope. The parts of a wire rope illustrated in the figure below. The core is the foundation of the rope design. The main functionality of the core is to support the wire stands and maintain them in their position during the lifecycle of the product…

Paper Bullets Experiment: Data Analysis The scientific question that was investigated by the paper bullets experiment asked, “Does the width of a paper bullet affect the distance it travels when it is launched?” The hypothesis that goes along with that question is, “If a paper bullet has a larger width, then it will travel a shorter distance than a standard paper bullet with a width of 4cm.” Variables in this experiment included independent variable (width of the starting piece of paper used to…

and the duration of swinging motion of golf club is relatively short to cause a significant air resistance and the shape of golf club does not tend to cause the air resistnace very much.Therefore the most energy loss will be caused by the friction force acting between the Iron stick holder and golf club, and the non elastic…

The scientist, Sir Isaac Newton, helped to organize the thinking about forces by formulating three laws. In his book Newton describes his three laws of motion. Newton’s Laws are all around us. To prove this, you will conduct 14 different activities showing everyday examples of these laws. Lab Procedure You will start at a lab station and then move from station to station until you have completed all 14 activities. You will have 3minutes to do the activity at each lab station. Perform the…

× 410 Screw plunger diameter (mm) 45 Mold transfer stroke (mm) 360 Injection pressure (MPa) 193 Maximum mold thickness (mm) 400 Injection time (s) 3.8 Maximum template spacing (mm) 400 Plasticizing capacity (g/s) 80 Mode-locked 410 × 410 Clamping force (kN) 1500 Die positioning hole diameter (mm) ϕ…

Introduction To understand aircraft propulsion it is important to understand the term propulsion first. Propulsion is a means of producing force required for movement of object. The propulsion system has some source of mechanical power and some means of using this power to generate force such as wheels, propellers, legs, etc. Nobody can precisely tell the origin of mankind’s desire to fly as it is lost in the distant past. There are legends of people strapping birdlike wings and jumping of a…

This resistive force retards the motion of the fluid and enhances its temperature. This effect is clear for the velocity in Fig.5 and for the temperature as well as the concentration in Figs. 8 and 10, respectively. Also, these figures illustrate that the magnetic field…

Learning Objective At the end of this topic, you will be able to understand about: • Brakes Introduction: Brakes are classified into six types based on the nature of power employed. Brakes are employed to stop the vehicle in the least possible distance. The following media (Brakes) explains about the functions and types of brakes. Original OST In this media, you will learn about ‘Brakes’. Brake: Brake is one of the vital control parts of a vehicle. Brakes are needed to stop the vehicle in…