A person of mass 100kg is standing in an elevator car. Calculate the forces in three...

Question

Question

A person of mass 100kg is standing in an elevator car. Calculate the forces in three scenarios :

1. the elevator car is moving upward and and its speed is increasing at a rate of 1m/s/s.

2. the elevator car is moving down and its speed is increasing at a rate of 1m/s/s

3. the elevator car is moving downward and its speed is decreasing at a rate of 1m/s/s

science physics

Answer 1

Answer #1

Fn is normal force on the person

F =net force on the person

Fg=gravitational force on the person

Answer 2

Similar Homework Help Questions

3,4? 3. A 100-kg person stwnds on a scale fastened to the floor of an elevator....

3,4? 3. A 100-kg person stwnds on a scale fastened to the floor of an elevator. The scale reads in newtons. What does the scale read when (a) the elevator is moving with upward acceleration a (b) the elevator is moving with downward acceieration a' and (c) the elevator is moving upward at 20 m/s while its speed is decreasing at a rate of 8 m/s?? 4. A beer stein of mass 0.45 kg slides horizontally along the bar with...
Suppose a person with a mass of 60 kg is in an elevator standing on a...

Suppose a person with a mass of 60 kg is in an elevator standing on a scale that reads in Newtons. Use a free body diagrams of the scale and the person to determine what the scale would read for the following situations: A. If the elevator is descending at 4.9 m/s. B. If the elevator has a downward acceleration of 4.9 m/s2 . C. If the elevator has an upward acceleration of 4.9 m/s2 . explain WHY
A) 70 kg man s standing in an elevator. Find the reaction of the elevator...

A) 70 kg man s standing in an elevator. Find the reaction of the elevator on the man if a) the elevator is accelerating upward at 1.5 m/s^2 b) the elevator is accelerating downward at 1.5m/s^2 c) the elevator is descending at a constant velocity 3m/s. B) If the elevator and its contents has a total mass of 1500kg, and it is sup four cables each having a tension T. ? find the tension T IN EACH OF THE...

A person who normally weighs 250 pounds is standing on a scale inside an elevator. The...

A person who normally weighs 250 pounds is standing on a scale inside an elevator. The elevator is moving upward with a speed of 7 m/s and then begins to decelerate at a rate of 5 m/s2(0.5 g). What is the reading on the scale before the elevator begins to decelerate? What is the reading on the scale during the deceleration?
A person has a mass of 90kg. He is standing on a scale in an elevator....

A person has a mass of 90kg. He is standing on a scale in an elevator. The elevator is accelerating upward at 5/3 m/s2. What does the scale read on the earth and moon in kg?
(a) An elevator of mass m moving upward has two forces acting on it: the upward...

(a) An elevator of mass m moving upward has two forces acting on it: the upward force of tension in the cable and the downward force due to gravity. When the elevator is accelerating upward, which is greater, T or w? Tw Both forces are equal. (b) When the elevator is moving at a constant velocity upward, which is greater, T or w? Tw Both forces are equal. (c) When the elevator is moving upward, but the acceleration is downward, which is...

An elevator is moving upward with a speed of 11 m/s. Three seconds later, the elevator...

An elevator is moving upward with a speed of 11 m/s. Three seconds later, the elevator is still moving upward, but its speed has been reduced to 5.0 m/s. What is the average acceleration of the elevator during the 3.0 s interval? 2.0 m/s2, downward 2.0 m/s2, upward 5.3 m/s2, downward 5.3 m/s?, upward
(a) An elevator of mass m moving upward has two forces acting on it: the upward force of tension in the cable and the d...

(a) An elevator of mass m moving upward has two forces acting on it: the upward force of tension in the cable and the downward force due to gravity. When the elevator is accelerating upward, which is greater, T or w? T w Both forces are equal. (b) When the elevator is moving at a constant velocity upward, which is greater, T or w? T w Both forces are equal. (c) When the elevator is moving upward, but the acceleration...
A 140 lb person rides in elevator while standing on a scale that reads in slugs....

A 140 lb person rides in elevator while standing on a scale that reads in slugs. For each part below, draw a free body diagram, write the equations for Newton’s second law and solve. a.) If the elevator accelerates upward at 2.53 ft/s^2, what is the reading on the scale? b.) If the elevator accelerates downward at 1.53 ft/s^2, what is the reading on the scale? c.) If the elevator moves upward at a constant velocity of 2.53 ft/s, what...