physics

A cart on a horizontal, linear track has a fan attached to it. The cart is positioned at one end of the track, and the fan is turned on. Starting from rest, the cart takes 4.22 s to travel a distance of 1.44 m. The mass of the cart plus fan is 350 g. Assume that the cart travels with constant acceleration.
1)What is the net force exerted on the cart-fan combination?
2)Mass is added to the cart until the total mass of the cart-fan combination is 733 g, and the experiment is repeated. How long does it take for the cart, starting from rest, to travel 1.44 m now? Ignore the effects due to friction.

1)d=a*t^2/2 1.44=(a*4.22^2)/2 a=.1617
F=ma F=.35*.1617 F=.0566N

2) so I got problem 1 right but I'm not sure how to approach/start question 2.

any help is appreciated

  1. 👍 0
  2. 👎 0
  3. 👁 646
  1. F = .0566 N still
    m = .733
    a = F/m = .0772
    1.44 = .5 (.0772) t^2
    t = 6.11 s

    1. 👍 0
    2. 👎 0
  2. Wow it was that easy. Thank You!!!

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. physics

    A 0.054-kg pet lab mouse sits on a 0.35-kg air-track cart, as shown in (Figure 1) . The cart is at rest, as is a second cart with a mass of 0.25 kg. The lab mouse now jumps to the second cart. After the jump, the 0.35-kg cart has

    asked by anonymous on April 18, 2017
  2. Physics

    A horizontal cable pulls a 200 kg cart along a horizontal track.the tension in the cable is 500N. Starting from rest (a)how long will it take the cart to reach a speed of 8m/s (b) how far will it have gone ?

    asked by Pareha on November 24, 2019
  3. Physics Help

    A small, 200 g cart is moving at 1.50 m/s on an air track when it collides with a larger, 2.00 kg cart at rest. After the collision, the small cart recoils at 0.890 m/s. Q: What is the speed of the large cart after the collision?

    asked by Cat21 on August 6, 2011
  4. pals help

    An air-track cart with mass m1=0.29kg and initial speed v0=0.95m/s collides with and sticks to a second cart that is at rest initially. Part A If the mass of the second cart is m2=0.55kg, how much kinetic energy is lost as a

    asked by alex on April 18, 2017
  5. physics

    A cart loaded with bricks has a total mass of 18 kg and is pulled at constant speed by a rope. The rope is inclined at 30.4  above the horizontal and the cart moves 21.5 m on a horizontal floor. The coefficient of kinetic

    asked by phys1! on October 14, 2011
  1. Physics

    A cart of mass M1 = 6 kg is attached to a block of mass M2 = 3 kg by a string that passes over a frictionless pulley. The system is initially at rest and the table is frictionless. After the block has fallen a distance h = 1 m:

    asked by Jamila on June 13, 2006
  2. Physics

    An air track cart with mass m 0.4kg and initial speed v0 = 0.7m/s collides with and sticks to a second cart that is at rest initially. If the mass of the second cart is m2 = 0.5kg, how much kinetic energy is lost as result of the

    asked by Ekaette on November 15, 2017
  3. Science

    A 0.5kg cart connected to light spring for which the force constant is 20 Nm on horizontal frictionless air track. Calculate the total energy of the system and the maximum speed of the cart if the amplitude of the motion is 3.0cm

    asked by Anonymous on May 5, 2019
  4. science

    John loads a collapsed inflatable boat into a two wheel "grocery type" handcart and wheels it down to the lake. While the cart is being wheeled it is tipped at about a 45-degree angle (in other words, about halfway between

    asked by Anonymous on October 28, 2009
  5. physics

    A 350-g air track cart on a horizontal air track is attached to a string that goes over a pulley with a moment of inertia of 6.00 × 10-6 kg·m2 and a radius of 1.35 cm. The string is pulled vertically downward by a force of 2.50

    asked by Anonymous on April 11, 2013
  6. please help physics!!!!

    Two dynamics carts are placed end to end. Cart 1 (1.2 kg) is stuck to cart 2 (1.8 kg). Cart 1 is pushed with a force of 18.9 N (west),causing cart 1 to push cart 2 forward. Ignore the force of friction. Calculate the acceleration

    asked by Carrie on October 21, 2014

You can view more similar questions or ask a new question.