phy

An 90 kg person steps into a car of mass 2600 kg, causing it to sink 2.35 cm on its springs. Assuming no damping, with what frequency will the car and passenger vibrate on the springs?

  1. 👍 0
  2. 👎 0
  3. 👁 172
asked by klk
  1. The spring constant is
    k = (90*9.8N/0.0235 m) = 3.75^10^4 N/m

    and the vibration frequency is

    w = [1/(2 pi)]*sqrt(k/Mtotal)

    Mtotal = 2690 kg

    w = ___ s^-1

    1. 👍 0
    2. 👎 0
    posted by drwls

Respond to this Question

First Name

Your Response

Similar Questions

  1. physics

    A 85.0 kg person steps into a car of mass 2500.0 kg, causing it to sink 2.5 cm. Assuming no damping, with what frequency will the car and passenger vibrate on the springs?

    asked by help? on April 28, 2008
  2. Physics

    A 86.0 kg person steps into a car of mass 2500.0 kg, causing it to sink 3.0 cm. Assuming no damping, with what frequency will the car and passenger vibrate on the springs? Here is what I do. I take the mass and set it equal to k*x

    asked by Lindsay on April 30, 2008
  3. physics

    The mass of an unloaded car is 800 kg. The body of the car will sink 6 cm after getting in 5 persons of total mass of 500 kg. How much is the time of period of vibration of the unloaded car and loaded with passengers?

    asked by Anonymous on October 12, 2013
  4. Math

    how do i minimize this function. 21L + (2600/L) Set the derivative equal to zero and solve for L. 21 - 2600/L^2 = 0 2600 = 21 L^2 There will be positive and negative solutions for L. You can use the second derivative test or

    asked by David on November 24, 2006
  5. physics

    A driver of a car traveling at 16.7 m/s applies the brakes, causing a uniform deceleration of 2.5 m/s2. The first question is - How long does it take the car to accelerate to a final speed of 13.9 m/s? For this i got 1.12 and

    asked by John on September 6, 2011
  6. physics

    you are driving your new car 14.0m/s east when you slam on your brakes to avoiavoid having your first collision. The force of friction on your car tires is 1.5kN and the combined mass of your car is 1200kg. Detemine the (a).

    asked by paru on October 8, 2012
  7. Physics Please help!

    the coefficient of static friction between the coffee cup and the roof of a car is 0.28, If the maximum acceleration the car can have without causing a cup of coffee (on the top of the car) to slide is 2.7 m/s^. What is the

    asked by Casey on January 5, 2012
  8. Physics Please help!

    the coefficient of static friction between the coffee cup and the roof of a car is 0.28, If the maximum acceleration the car can have without causing a cup of coffee (on the top of the car) to slide is 2.7 m/s^. What is the

    asked by Casey on January 5, 2012
  9. math

    Consider the following students method of solving the proportion 8/5 = 20/x and determine whether the methods were correct: Richie: First I divided 20 by 8 and got 2 1/2. Then I multiplied 2 1/2 by 5 and got 12 1/2 for my answer.

    asked by Ella on August 11, 2010
  10. science plzzz help

    1 what si the diference between mass and weight? 2 will the following substances float or sink in water at 3.98 degree celcius? Mass volume float & sink 25g 50ml ? 65g 40ml ? 36g 35ml ?

    asked by ashlee on September 21, 2008

More Similar Questions