What does the scale read in kg when the elevator is accelerating upward at 3.0 m s2?
1 Expert Answer So since force is equal to mass times acceleration, in this case, mass is equal to 752รท9.8 m/s squared = 76.2 kg. Now that the elevators moving upward at an acceleration of 3 m/s squared, this gets added to the acceleration of gravity resulting in the final acceleration of 12.8 m/s squared.
What does the scale read when the elevator is moving up at constant speed?
The scale reads the Normal Force which is opposed by the Force of Gravity on the person alone. Remember: The scale reads the Normal Force, equal and opposite to the Force of Gravity if there is no acceleration.
How do you find the upward acceleration of an elevator?
N = mg + ma if the elevator has an upward acceleration. N = mg – ma if the elevator has a downward acceleration.
What is the apparent weight of a person when an elevator is accelerating upwards?
If the elevator accelerates upward, a is positive, and the equation shows that the apparent weight is greater than the true weight. If the elevator accelerates downward, a is negative, and the apparent weight is less than the true weight. If the elevator falls freely, , and the apparent weight is zero.
What is the passenger’s apparent weight while the elevator is speeding up?
= 738 N The apparent weight of the passenger while the elevator is speeding up is 738 N. When the elevator reaches the cruising speed, the elevator stops accelerating upward and moves with the constant speed. The only acceleration acting on the passenger is the acceleration due to gravity.
What does a scale in an elevator measure?
When you are accelerating upwards in an elevator, you feel an increase in apparent weight. A scale measures the total amount of force pushing down on it, and if you were to step on a scale in an elevator, you would see an increase in its reading.
How do you calculate upward force?
Upward Force Formula To calculate an upward force, multiply the upward acceleration by the object’s mass.
What is apparent weight formula?
The apparent weight of an accelerating object is the vector sum of its real weight and the negative of all the forces that produce the object’s acceleration a = dv/dt. wapparent = wreal – ma.
What is the formula for apparent weight?
The apparent weight of an accelerating object is the vector sum of its real weight and the negative of all the forces that produce the object’s acceleration a = dv/dt.
What is the upward force?
buoyant force is the upward force a fluid exerts on an object.