center of mass-please help

The CM of an empty 1170 kg car is 2.50 m behind the front of the car. How far from the front of the car will the CM be when two people sit in the front seat 2.8 m from the front of the car, and three people sit in the back seat 3.90 m from the front? Assume that each person has a mass of 73 kg.

  1. 👍
  2. 👎
  3. 👁
  1. CM*totalmass=CM1*m1+CM2*m1+CM2*m3
    CM(1170+2*73+2*73)=1170*2.5+2*73*2.8+2.&3*3.9

    solve for CM.

    1. 👍
    2. 👎
    👤
    bobpursley
  2. thank you so much!

    1. 👍
    2. 👎
  3. 2.6cm

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Math

    2. Suppose the angle of depression from a race car driver's eyes to the bottom of the 3-foot high back end of the car in front of him is 18 degrees. How far apart, to the nearest foot, are their bumpers? Assume the horizontal

  2. Math

    An auditorium has 30 rows with 10 seats in the first row, 12 in the second row, 14 in the third row, and so forth. How many seats are in the auditorium My answer is 1170 but the way I figured out the problem was by listing numbers

  3. Physics

    The position of the front bumper of a test car under microprocessor control is given by x(t)=2.17m+(4.80m/s2)t2−(0.100m/s6)t6. Find it's acceleration the second instant when the car has zero velocity. I already know that the

  4. physic

    You are traveling at a constant speed υM, and there is a car in front of you traveling with a speed υA You notice that υM>υA, so you start slowing down with a constant acceleration a when the distance between you and the other

  1. Physics

    The front 1.20 m of a 1550 kg car is designed as a "crumple zone" that collapses to absorb the shock of a collision. (a) If a car traveling 26.0 m/s stops uniformly in 1.20 m, how long does the collision last? cannot_evaluate s

  2. Physics

    Two cars are driving at the same constant speed on a straight road, with car 1 in front of car 2. Car 1 suddenly starts to brake with constant acceleration and stops in 10 m. At the instant car 1 comes to a stop, car 2 begins to

  3. Physics Part A HELP!!

    4.) In coming to a stop, a car leaves skid marks 80m long on the highway. Assuming a DEceleration of 7.00 m/s^2 (m/s/s), estimate the speed of the car just before breaking. 6.) A car traveling @ 90km/h strikes a tree. The front

  4. physics

    A locomotive is pulling an empty freight car with a constant acceleration on a horizontal surface. The mass of the locomotive is five times the mass of the car. Which statement is true about the force applied by the car on the

  1. Physics Urgent!

    1.You are driving at the speed of 28.7 m/s (64.2138 mph) when suddenly the car in front of you (previously traveling at the same speed) brakes. Considering an average human reaction, you press the brakes 0.427 s later. Assume that

  2. math

    Alice is in a carpool with Sid, Raymond and Lucy. Sid will only sit beside his wife. Lucy won't sit in the front seat if her husband drives. Alice never sits in the front. The car seats only 2 in the front and 2 in the back. Who

  3. Physics

    The driver of a car on a horizontal road makes an emergency stop by applying the brakes so that all four wheels lock and skid along the road. The coefficient of kinetic friction between tires and road is 0.39. The separation

  4. phys

    When a car is weighed, it is allowed to move over a scale which records a reading as the front wheels go over the scale, and a second reading when the rear wheels go over the scale. The weight of the car is equal to A) the weight

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