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What if your mass is 75kg. You stand on a scale in an elevator that is about to go down. Starting from rest the elevator accelerates at 2.0ms squared for 2.0s then travels at a constant speed. What do?
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Why do you feel light coming down a hill on a roller coaster?
The same thing happens if you are coming down in an elevator, or if you fall from any height. If you are standing still on the ground, you are subjected to gravity from the Earth which is effectively an acceleration of 1g or about 9.81 metres per second squared and you will feel your normal weight. If you fall from a height you will accelerate towards the ground at about 9.81 metres per second squared and you will feel "light" or indeed "weightless". On the downward hill of a rollercoaster, the rate of descent is enough to make you feel lighter than usual and similarly, on the upward hill of a rollercoaster the rate of ascent might be enough to make you feel heavier than usual. The design of the rollercoaster determines just how much lighter you will feel on the downward sections. You can try a neat little experiment if you take a set of ordinary bathroom scales with you into an elevator. You should observe that you "weigh more" when the elevator accelerates upwards and that you "weigh less" when the elevator accelerates downwards.
What is the rate of the gravity accelerates objects on earth?
The acceleration due to gravity alone on Earth is about 9.81 meters per second-squared.
What is the final velocity f a car that accelerates from rest at 9ftsecond squared for 8 seconds?
Speed = (acceleration) x (time) = 9 x 8 = 72 ft/sec
How much force is needed to push a car with a mass of 1000 kilograms so it accelerates at 60 meters per second squared?
Use the following equation. F = m * a = 1000 * 60 = 60,000 N
When a net force at 10 newtons acts on a hockey puck it accelerates at a rate of 50meters per second squared What is the mass of the puck?
A = F/M = 50/10 = 5 meters per second2
If an object accelerates at 3 meters per second squared when a 10-newton force is applied to it what force would cause this object to accelerate at 6 meters per second squared?
F = ma, so if mass is constant, you need to double the force to double the acceleration. The answer is 20 N.
What is the force that accelerates objects at 9.80665 meters per second squared towards Earth?
gravity
Why do you feel light coming down a hill on a roller coaster?
The same thing happens if you are coming down in an elevator, or if you fall from any height. If you are standing still on the ground, you are subjected to gravity from the Earth which is effectively an acceleration of 1g or about 9.81 metres per second squared and you will feel your normal weight. If you fall from a height you will accelerate towards the ground at about 9.81 metres per second squared and you will feel "light" or indeed "weightless". On the downward hill of a rollercoaster, the rate of descent is enough to make you feel lighter than usual and similarly, on the upward hill of a rollercoaster the rate of ascent might be enough to make you feel heavier than usual. The design of the rollercoaster determines just how much lighter you will feel on the downward sections. You can try a neat little experiment if you take a set of ordinary bathroom scales with you into an elevator. You should observe that you "weigh more" when the elevator accelerates upwards and that you "weigh less" when the elevator accelerates downwards.
What is the antiderivative squared 0 9X18 squared X 17 X 18?
Let k = 0 9x18 squared x 17 x 18 k is a constant. Its anti-derivative is kx + C, where C is a constant. The anti-derivative squared is (kx+ C) squared.
What are the units of the Coulomb constant k which appears in Coulomb's law?
newtons * meters squared / coulombs squared
To pass a truck a car initially traveling 25 meters per second accelerates at a constant rate of 3 meters per second squared after 6 seconds how fast is the car traveling?
That's easy, if the car is initially traveling at 25 meters per second and gradually accelerates 3 meters per second for 6 seconds then the car is traveling at 43 meters per second.
What is the rate of the gravity accelerates objects on earth?
The acceleration due to gravity alone on Earth is about 9.81 meters per second-squared.
What does EMC2 really mean?
E = MC squared means that Energy is equal to Mass times a Constant (which is the speed of light) squared.
Can you make cosine squared X divided by2 equal to cosine squared x with some constant?
You could just pull out the half: it will be (1/2) cos squared x.
What is the force of a 50 kg object that accelerates with 5 miles per second squared?
5 miles per second squared = 8.047 km per second squared (approx) = 8,047 ms2 So a mass of 50 kg, accelerated at 8,047 ms-2 = 402,336 Newtons.
What is the formula for force constant?
Fc = mv^2/r Or Force constant = Mass X Velocity Squared Over Radius.
What force is needed to accelerate an elevator with a mass of 1000 kg upward at a rate of 2 m per second squared?
Weight of the elevator = 1000kg x -9.8m/s2 = -9800N Upward force acting on the elevator = 1000kg x 2m/s2 = 2000N Net force = upward force - weight of elevator = 2000N - (-9800N) = 11800N
