Carousel: Centripetal Force Since the ball is traveling in a circular path, an outside force must be acting on the ball – that force is the…
Example: Static friction prevents an object like a book from falling off the desk, even if the desk is slightly tilted. It helps us pick up…
So that’s negative of 80 kilograms mass times 9.81 newtons per kilogram divided by negative 0.12 meters. And this is negative because the spring was displaced…
Newton’s third law of motion states that for every action there is an equal and opposite reaction. This is demonstrated when you pull on the slingshot to shoot the marshmallow, the slingshot is pulled up (the action). What is the physics behind a slingshot? Slingshot physics involves the use of stored elastic energy to shoot…
The output force equals your pulling force multiplied by the number of lifting strands. When you use a pulley, the rope tension is constant. It equals your pulling force. The output force equals your pulling force multiplied by the number of lifting strands. How do you solve pulley problems in physics? What is the formula…
7 Steps for Effective Problem Solving. Step 1: Identifying the Problem. Step 2: Defining Goals. Step 3: Brainstorming. Step 4: Assessing Alternatives. Step 5: Choosing the Solution. Step 6: Active Execution of the Chosen Solution. Step 7: Evaluation. What are the steps to solve a physics problem? What are the 5 problem solving steps? Step…
For Bernoulli’s equation to be applied, the following assumptions must be met: The flow must be steady. (Velocity, pressure and density cannot change at any point). The flow must be incompressible – even when the pressure varies, the density must remain constant along the streamline. How do you solve fluid problems in physics? What is…
Yes , h c verma is more than enough for mains to secure even full marks . so, dnt waste the time in irodov , irodov is specially for jee advanced if u have solved h c verma completely , as of now , do only h c verma numericals + past year jee papers…
Answer 1: Heavy objects fall at the same rate (or speed) as light ones. The acceleration due to gravity is about 10 m/s2 everywhere around earth, so all objects experience the same acceleration when they fall. Why doesn’t a whole brick fall faster than half a brick? A whole brick has more mass than half…
Calculate the force caused by gravity on the basic pulley system using the following equation: G = M x n (gravitational acceleration). The gravitational acceleration is a constant equal to 9.8 m/s². The mass M = 9g, so G = 9g x 9.8 m/s² = 88.2gm/s², or 88.2 newtons. How does a pulley with mass…
We can view the energy U as being stored in the separated charges, U = ½Q2/C. We can also view the energy as being stored in the electric field produced by the separated charges, U = ½CV2. How do you calculate energy stored in physics? Work is done when a spring is extended or compressed…
Other sorts of real life examples would be a hot cocoa cooling to room temperature as it is left out on the counter, the asymptote would be the temperature of the room or a common example used in mathematics courses is the decline of medicine such as aspirin in your system. What are the 3…
Force is equal to mass times acceleration. This is really a mathematical equation, f = ma. This equation applies to launching the rocket off the launch pad. It is essential to understand that there are four basic forces operating on any object moving through the air. What is the physics behind launching a rocket? In…
For the car to be in equilibrium (at rest) on the bank, the frictional force (parallel to the slope) exerted by the track on the car must be up the slope. What is the equation for a banked curve? The equation for the maximum velocity of a car on a banked curve is given as:…
How do you solve an elevator problem in physics? What forces act on an elevator going down? The elevator’s free-body diagram has three forces, the force of gravity, a downward normal force from you, and an upward force from the tension in the cable holding the elevator. The combined system of you + elevator has…
As the angle of the incline is increased, the normal force is decreased, which decreases the frictional force. The incline can be raised until the object just begins to slide. At this angle of the incline friction is at its maximum or ready to be over come. How do you solve a friction problem with…
How do you solve inclined problems in physics? What are 10 examples of an inclined plane? Garbage Dumping. The trucks that are used to dump garbage consist of a mechanism that tilts the container attached to the back of the truck. Pyramids. Have you ever wondered how the pyramids were made? Stairs and Ramps. Moving…
How do you find the atmospheric pressure by using mercury barometer? Why the height of a barometer with water in it will be about 13.6 times the height of mercury in a common barometer? A denser/heavier liquid means shorter height of the column to balance the pressure. For example the density of water is 13.6…
A normal mode of a dynamical system is a pattern of motion in which all parts of the system move sinusoidally with the same frequency and with a fixed phase relation. The free motion described by the normal modes takes place at fixed frequencies. How do you calculate normal mode? To specify what a normal…
Television would be blurry without special relativity But if light stands alone as an immutable champion, then everything else in the universe must be flexible, including distances between things (space) or even time. That’s been proven experimentally and leads to some wacky trends in our existence. How do you solve special relativity problems? Draw a…
Glancing collision is a collision that takes place under a small angle, with the incident body being nearly parallel to the surface. How do you solve collision problems in physics? What are the conditions of glancing collision and head on collision? If two objects make a head on collision, they can bounce and move along…
If we know the falling object’s acceleration and incline angle, we can find the g value without mass. When an object accelerates horizontally along the earth’s surface, it accelerates equally to the value of g, which is 9.8 m/s2. How do you find the acceleration of a pulley? How do you find the acceleration of…
efficiency =WQH=1−TCTH. These temperatures are of course in degrees Kelvin, so for example the efficiency of a Carnot engine having a hot reservoir of boiling water and a cold reservoir ice cold water will be 1−(273/373)=0.27, just over a quarter of the heat energy is transformed into useful work. What is the efficiency of the…