physics

An elevator with a wieght of 27.8 kN is given an upward acceleration of 1.22 m/s^2 by a cable. a) what is the tension in the cable. b) what is the tension when the elevator is declerating at the rate of 1.22m/s^2 but is still moving upwards?

what exactly is a kN? to find the tension of part a what equation would I use? for b) I need to make a=-1.22m/s^2 but I am not sure what the equation I would use be.

  1. 👍 0
  2. 👎 0
  3. 👁 155
asked by Chris

Respond to this Question

First Name

Your Response

Similar Questions

  1. physics

    a person stands on a bathroom scale in a motionless elevator. when the elevator begins to move, the scale briefly reads only .75 of the persons regular wieght. calculate the acceleration of the elevator, and find the direction of

    asked by sarah on October 2, 2006
  2. dynamics of rigid bodies

    1. An elevator weighing 15 kN starts from rest and acquires an upward velocity of 3 m/sec. in a distance of 6 m. If the acceleration is constant, what is the tension in the cable? 2. A man weighing 70 kg is in an elevator moving

    asked by von on July 7, 2015
  3. science

    Now, three masses (m1 = 3.1 kg, m2 = 9.3 kg and m3 = 6.2) hang from three identical springs in a motionless elevator. The springs all have the same spring constant given above. Now the elevator is moving downward with a velocity

    asked by Austin on October 14, 2018
  4. physics

    Now, three masses (m1 = 3.1 kg, m2 = 9.3 kg and m3 = 6.2) hang from three identical springs in a motionless elevator. The springs all have the same spring constant given above. Now the elevator is moving downward with a velocity

    asked by Austin on October 14, 2018
  5. Physics

    While an elevator of mass 2681 kg moves upward, the tension in the cable is 29.4 kN. (a) What is the acceleration of the elevator? (b) If at some point in the motion the velocity of the elevator is 1.04 m/s upward, what is the

    asked by Anonymous on February 8, 2012
  6. physics

    What is the distance the lower spring is extended from its unstretched length? three masses (m1 = 3.1 kg, m2 = 9.3 kg and m3 = 6.2) hang from three identical springs in a motionless elevator. The springs all have the same spring

    asked by elizabeth on October 13, 2018
  7. PHYSICSSS

    While an elevator of mass 2681 kg moves upward, the tension in the cable is 29.4 kN. (a) What is the acceleration of the elevator? (b) If at some point in the motion the velocity of the elevator is 1.04 m/s upward, what is the

    asked by Anonymous on February 11, 2012
  8. physic

    A student takes the elevator up to the fourth floor to see her favorite physics instructor. She stands on the floor of the elevator, which is horizontal. Both the student and the elevator are solid objects, and they both

    asked by joy on February 7, 2018
  9. physics

    Now, three masses (m1 = 3.1 kg, m2 = 9.3 kg and m3 = 6.2) hang from three identical springs in a motionless elevator. The springs all have the same spring constant given above. Now the elevator is moving downward with a velocity

    asked by priscilla on October 14, 2018
  10. Physics

    While in an elevator, you decide to take some weight readings of yourself to determine the elevator’s acceleration. When the elevator is stopped, you read a weight of 59.2 kg. When the elevator is moving, you measure a maximum

    asked by Melissa on April 21, 2016

More Similar Questions