PHYSICS

Two crates , one with mass 4.00 kg and the other with 6.00 kg, sit on the frictionless surface of a frozen pond, connected by a light rope. Awoman wearing golf shoes(so she can get traction on the ice)pulls horizontally on the 6.00-kg crate with a force F that gives the crate an acceleration of 2.50 m/s2. (a)What is the acceleration of the 4.00- kg crate?(b)Draw a free- body diagram for the 4.00-kg crate. Use that diagram and Newtons second law to find tension T in the rope that connects the two crates. (c) Draw a free-body diagram for 6.00- kg crate. What is the direction of the net force on the 6.00-kg crate? Which is larger in magnitude, force T or force F? (d)Use part (c) and Newton's second law to calculate the magnitude of the force F.

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩
  1. If the heavy crate and the light crate are attached,
    a) accelerations are equal.

    Tension in rope=4kg*acceleration

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    👤
    bobpursley
  2. please! may I have this answer for my assignment

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  3. A block moves up a 30° incline under the action of certain forces, three of which are shown at the right. F1 is horizontal and of magnitude 40 N. F2 is normal to the plane and of magnitude 20 N. F3 is parallel to the plane and magnitude 30 N. (a) Determine the work done by each force as the block (and point of application of each force) moves 80 cm up the incline. (b) What is the work done by the gravity? (c) Find the total work done on the block excluding the work of frictional force

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    A crate of mass m 1 =12.4 kg is pulled by a massless rope up a 36.9 degrees ramp. The rope passes over an ideal pulley and is attached to a hanging crate of mass m 2 =16.3 kg . The crates move 1.40 m, starting from rest. Find the

  2. math

    A trucker hauls citrus fruit from Florida to Montreal. Each crate of oranges is 4 ft3 in volume and weighs 60 lb. Each crate of grapefruit has a volume of 6 ft3 and weighs 75 lb. His truck has a maximum capacity of 300 ft3 and can

  3. Physics

    When four people with a combined mass of 320 kg sit down in a car, they find that the car drops 0.80 cm lower on its springs. Then they get out of the car and bounce it up and down. What is the frequency of the car's vibration if

  4. Physics

    Two crates, one with mass 4.00 kg and the other with mass 6.00 kg, sit on the frictionless surface of a frozen pond, connected by a light rope. A woman wearing golf shoes (so she can traction on the ice) pulls horizontally on the

  1. physics

    Two crates, of mass 75 kg and 110 kg, are in contact and at rest on a horizontal surface. A 620-N force is exerted on the 75-kg crate. If the coefficient of kinetic friction is 0.15, calculate (a) the acceleration of the system,

  2. physics

    Two crates, of mass 65 kg and 125 kg, are in contact and at rest on a horizontal surface. A 650-N force is exerted on the 65-kg crate. If the coefficient of kinetic friction is 0.18, calculate the force that each crate exerts on

  3. Mathematical literacy

    Dimensions of a pack of 12 cans: -length :29,2 cm -Width : 21,9 cm -height : 10,8 cm The mass of an empty can is 40g. The mass of a fully packed shipping crate with cans of fish is 280 kg. The inner dimensions of a shipping crate

  4. physics

    Two crates are connected by a massless rope that passes over a pulley as shown in the figure below. If the crates have mass 32 kg and 80 kg, find their acceleration. If the system begins at rest, with the more massive crate a

  1. Math

    Mr.Santiago brought 10 crates of oranges. There were 50 oranges in each crates. He sold 65% of them. 8% of the remainder went bad, and he threw them away. A) How much money did Mr.Santiago earn if he sold the oranges 5 for $1.20

  2. physics

    The floor of a railroad flatcar is loaded with loose crates having a coefficient of static friction of 0.20 with the floor. If the train is initially moving at a speed of 47 km/h, in how short a distance can the train be stopped

  3. Math

    Jerry started doing sit ups every day. The first day he did 15 sit ups. Every day after that he did 2 more sit ups than he had done the previous day. Today Jerry did to 33 sit ups. Write an equation that could be solved to find

  4. Math

    There are 92 band students. For a concert, the stage is divided into four sections. 24 students sit on the left, 36 sit in the middle, 28 sit on the right, and 4 stand behind the others. What fraction of the band sits in the

View more similar questions or ask a new question.