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What will be the scale of man in an elevator moving at an acceleration of 2 ms2 if the resting scale on him is 400 newtons?
answer please The forces on the man are gravity (his rest weight of 400 N) pulling down and the force of the scale , say P, pushing up on his feet. Then apply Newton's 2nd law to the man; mass x acceleration = net force on man: (mass = 400/9.8 = 40.8 kg) ma = P -400 P = ma + 400 Now P is the force the scale exerts on the man. From Newton's third law the man will exert an equal force on the scale. This force is therefore the scale reading and the man's apparent weight. If the acceleration is up then a = 2 m/ss , and P = (40.8)(2) + 400 = 481.6 N If the acceleration is down then a = -2 m/ss, and P = -(40.8)(2) + 400 = 318.4 N
What else can I help you with?
When elevator move down with acceleration pendulum of bob what is effect on time period?
When the elevator starts moving down, the time period increases. But when the elevator is descending at a constant velocity, the time period returns to its normal.
What would the acceleration of a turtle that is moving with a constant velocity of 0.25 miles per second to the right?
The acceleration would be zero because the turtle is moving at a constant speed
What then can you say about the acceleration of the moving car?
The answer depends on when "then" is.
Does a particle moving in a straight line have acceleration?
A particle moving in a straight line may or may not have acceleration. Acceleration is adifferent phenomenon altogether. the rate of change of velocity is acceleration, a particle can move in a straight line with a constant velocity thus having no acceleration & it can also move with increasing or decreasing velocities thereby accelerating or deaccelerating.
For a car moving around a circular track at a constant speed the acceleration is?
constant speed=0 acceleration Acceleration is the change in speed. If the speed doesn't change(ie constant) the acceleration is zero.
How does the elevator's acceleration change when it is moving downward?
When an elevator is moving downward, its acceleration changes to be negative, meaning it is slowing down.
What is the acceleration of an elevator if a student stands on bathroom scale in the elevator and the scales reads 836 newtons and the elevator is moving upward?
The acceleration of the elevator can be calculated by dividing the reading on the scale (836 N) by the student's mass to get the acceleration due to the elevator's motion. Additionally, the acceleration due to gravity should also be taken into account, as it will affect the weight measured by the scale.
When a coin is tossed in moving elevator?
When a coin is tossed in a moving elevator, its trajectory will be affected by both the acceleration of the elevator and gravity. If the elevator is moving upward, the coin will appear to fall back slightly behind the person who threw it. If the elevator is moving downward, the coin will land slightly ahead of the person who threw it.
What happen if an object is acted upon by balanced forces?
In this case, it is as if no force acted on the object. The object won't acceleration; if it is resting, it will continue resting, and if it is moving, it will continue moving at the same velocity.
What happens to the reading on the scale when the elevator stops moving?
When the elevator stops moving, the reading on the scale will briefly increase before returning to the original reading. This is due to the inertia acting on the person's body and affecting the scale reading as the elevator decelerates.
Does a dish resting on a table have constant acceleration?
No, a dish resting on a table does not have constant acceleration. In fact, it has zero acceleration because it is not moving. Constant acceleration only occurs when an object's velocity changes at a constant rate over time.
When elevator move down with acceleration pendulum of bob what is effect on time period?
When the elevator starts moving down, the time period increases. But when the elevator is descending at a constant velocity, the time period returns to its normal.
In a moving elevator you are not moving from the reference point of the?
elevator itself.
How Do we know when we are moving up and down in an elevator?
We can feel the sensation of going up or down in an elevator due to changes in our body's inertia and the acceleration or deceleration of the elevator. Additionally, visual cues such as the changing floor numbers displayed in the elevator can also indicate the direction of movement.
How is newtons 2nd law relevant to baseball?
the less mass the ball has (times) the acceleration the ball is moving = the force the ball was thrown at.(F=MA)
What is the effect of acceleration on an object which is not moving?
An object which is not moving is not experiencing any acceleration, other than the acceleration due to gravity, which, along with mass gives it its weight. The upward force (normal force) acting on the object is equal to but opposite to its weight, and all of the forces acting on the objects are in equilibrium so the net force is zero Newtons.
How the tension can be greater than gravity yet the elevator is moving downwards?
The tension can be greater than gravity when the elevator is accelerating downwards, causing a net force that exceeds the force of gravity acting on the elevator. This creates a situation where the tension in the elevator cable is greater than the force of gravity, allowing the elevator to move downwards.
