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Is it true that neglecting air resistance is a good approximation for the motion of a real object tossed in the air if the object is both light and moving slowly over a relatively short distance?
Wiki User
∙ 13y ago
Not really. Neglecting air resistance just makes it easier to solve equations and grasp concepts. If one were to actually be collecting data from your experiment, they would have to take in air resistance, especially if the object's cross section were high and/or density was low.
Wiki User
∙ 13y ago
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What is The law that states the effort force times the distance the effort moves is equal to the resistance times the distance the resistance moves?
At each end, (the force) x (the distance) defines the quantity of work, or energy. They're known to be equal because of the law of conservation of energy.
Does an object dropped from a building reach the halfway point of its fall in half the time it takes it to drop?
It depends. Gravity constantly accelerates an object until the force of wind resistance is equal to the force of gravity. Each case is different. If we lived in a world with no air, the answer would be yes.============================================If you neglect air resistance ... which we always do when we discuss gravity and falling objects ... then the answer is a resounding NO.To travel half the distance in half the time means that the speed is constant; that is exactly NOT true when something falls on account of gravity.Falling on account of gravity and neglecting air resistance, the time required to fall half the distance is [ 1/2 sqrt(2) ] times the duration of the total fall = about 70.7% of the total time.
Define Inclined Plane?
The inclined plane is a plane surface set at an angle, other than a right angle, against a horizontal surface. The inclined plane permits one to overcome a large resistance by applying a relatively small force through a longer distance than the load is to be raised.
What does depth of field mean?
depths of Field means The range of distance along the axis of an optical instrument which the object will produce a relatively distinct image
How do you calculate the falling time of a parachute?
You apply gravity (a= -9.8 m/s squared), the weight of the parachuter, the delta x (change in distance) and the air resistance of the parachute.
How far will a rubber ball fall in ten seconds?
The distance a rubber ball falls in 10 seconds will depend on the height from which it is dropped and the acceleration due to gravity. On Earth, neglecting air resistance, the general equation to calculate the distance fallen is: distance = 0.5 * acceleration due to gravity * time^2.
How far will a freely falling object fall from rest in 5 secs?
distance = 1/2 g t^2 = 1/2 x 32.2 x 5 x 5 = 405 feet (neglecting air resistance)
How long does it take a rock to hit the ground from 630 ft tall building?
Assuming the rock is dropped from rest and neglecting air resistance, it would take about 5.6 seconds for the rock to hit the ground from a 630 ft tall building. This is derived from the kinematic equation: distance = 0.5 * acceleration due to gravity * time^2.
When Neglecting air resistance a blowing ball falling from the top of ten story building will have?
When neglecting air resistance, a ball falling from the top of a ten-story building will gain speed due to gravity as it falls. Its acceleration will be approximately 9.8 m/s^2 and it will continue to increase until it hits the ground.
Is effort diastance is equal to the resistance distance?
No, effort distance and resistance distance are not necessarily equal. Effort distance refers to the distance over which a force is applied, while resistance distance refers to the distance over which the load or resistance moves. In some cases, these distances may be equal, but in others they may differ depending on the mechanical system being analyzed.
Is it true that the ideal mechanical advantage or IMA of a machine is the resistance distance divided by the effort distance?
resistance,effort
A human falls for 3.5 sec what was the distance of his fall?
The distance of fall can be calculated using the formula: distance = (1/2) * acceleration * time^2 For free fall near the surface of the Earth and neglecting air resistance, the acceleration is approximately 9.81 m/s^2. Plugging in the values, the distance of the fall would be around 59.2 meters.
You use an incline plane to lift a car up 4 meters is the distance of effort or distance of resistance?
The distance of effort is the distance along the incline plane that you apply force to lift the car. The distance of resistance is the vertical distance that the car is being lifted. In this scenario, the distance of effort is the 4 meters along the incline plane, and the distance of resistance is the vertical height the car is lifted.
How do you calculate work output for a simple machine?
The resistance force multiplied by the resistance distance.
Why do people use the lights from a window instead of using the room lights when measuring the focal length of a convex lens?
Light coming from a distance will be made up of relatively parallel rays of light. Making the approximation to the focal length (by means of a ray diagram) more accurate than if you used a light source that is at a distance comparable to that of the lens' focal length.
What is the horizontal displacement of a projectile?
The horizontal displacement of a projectile is the distance traveled by the projectile along the horizontal axis from its initial position to its final position. It is affected by the initial velocity of the projectile and the time it spends in motion. The horizontal displacement can be calculated using the equation: Horizontal displacement = initial velocity * time.
What is the distance between delhi and chopanki?
The distance between Delhi and Chopanki is relatively short.
