The system shown in Figure consists of a light, inextensible cord, light, frictionless pulleys, and blocks of m1 = 7.75 kg and m2 = 2.40kg masses. Notice that the block with the mass m2 is attached to one of the pulleys. The system is initially held at rest so that the blocks are at the same height above the ground. The blocks are then released at time t = 0. Find the displacement y1 (displacement up is positive, down is negative) of the block with the mass m1 at the time t-7.94 seconds. Submit your answer in m using 3 significant figures. az m m2

The system shown in Figure consists of a light, inextensible cord, light, frictionless pulleys, and blocks of m1 = 7.75 kg and m2 = 2.40kg masses. Notice that the block with the mass m2 is attached to one of the pulleys. The system is initially held at rest so that the blocks are at the same height above the ground. The blocks are then released at time t = 0. Find the displacement y1 (displacement up is positive, down is negative) of the block with the mass m1 at the time t-7.94 seconds. Submit your answer in m using 3 significant figures. az m m2

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter4: The Laws Of Motion

Section: Chapter Questions

Problem 84AP: In Figure P1.84, the pulleys and the cord are light, all surfaces are frictionless, and the cord...

See similar textbooks

Similar questions

A 235 kg rocket sled experiences a thrust of 752 N while it travels 120 m across a virtually frictionless (assume frictionless) surface. (a) Using Newton's Second Law of Motion, calculate the acceleration of the rocket sled. If the rocket sled was initially moving 20 m/s, how fast was it moving at the end of the 120 m? (b) Find the answer using kinematic equations. (c) If the rocket sled was initially moving 20 m/s, what was its initial translational kinetic energy? (d) How much work was done on the rocket sled by its thruster? (e) What is the final kinetic energy of the rocket sled?
found x component value but I can't do correctly with y component in the D question. And also need "E" Question-answer as soon as possible; I will add other info and graph with that question what will be helpful ig.
A ball of mass m is attached to a string of length L. It is being swung in a vertical circle with enough speed so that the string remains taut throughout the ball's motion. (Figure 1)Assume that the ball travels freely in this vertical circle with negligible loss of total mechanical energy. At the top and bottom of the vertical circle, the ball's speeds are vt and vb, and the corresponding tensions in the string are Tvect and Tvecb. Tvect and Tvecb have magnitudes Tt and Tb. Find Tb−Tt, the difference between the magnitude of the tension in the string at the bottom relative to that at the top of the circle. Express the difference in tension in terms of m and g. The quantities vt and vb should not appear in your final answer.
A 56-kg student runs at 4.2 m/s, grabs a hanging 10.0-m-long rope, and swings out over a lake (Figure 1). He releases the rope when his velocity is zero. a.)What is the angle θ when he releases the rope? Express your answer to two significant figures and include the appropriate units. b.)What is the tension in the rope just before he releases it? Express your answer to two significant figures and include the appropriate units. c.)What is the maximum tension in the rope during the swing? Express your answer to two significant figures and include the appropriate units.
A farmer is trying to haul three 500-kg trailers connected together with identical ropes that will break if their tension exceeds 3000 N . The first trailer is connected to his tractor with a rigid hitch. Part A If the tractor has to overcome a frictional force of 900 N per trailer to start them moving, what is the minimum force the tractor must exert on the first trailer to get them all rolling if the ropes are taut? Express your answer with the appropriate units. Part B What is the maximum force the tractor can exert without breaking any rope? Express your answer with the appropriate units.
the record distance in the sport of throwing cowpats is 81.1 m. this record was set by Steve Urner of the united states in 1981. assuming the initial launch angle was 45 degrees and the neglecting air resistance, answer the following (a) determine the initial speed of the projectile. (b) determine the total time the projectible was in flight. (c) qualitatively, how would the answers change if the launch angle were greater than 45 degrees? explain.
Solve for the ff.: (Answers should be at 3 decimal places) a. What will the magnitude of the final velocity u2 and m2 after the collision. b. What will be the direction of motion β of m2 after the collision? c. What is the total kinetic energy of this system before the collision?
Two blocks are connected by a light string that passes over two frictionless pulleys as in the figure below. The block of mass m2 is attached to a spring of force constant k and m1 > m2. If the system is released from rest, and the spring is initially not stretched or compressed, find an expression for the maximum displacement d of m2. (Use any variable or symbol stated above along with the following as necessary: g.)
In the (Figure 1) the coefficient of static friction between mass mAmA and the table is 0.50, whereas the coefficient of kinetic friction is 0.10. Ignore masses of the cord and the (frictionless) pulley. What minimum value of mAmA will keep the system from starting to move? Express your answer to two significant figures and include the appropriate units. What value of mAmA will keep the system moving at constant speed? Express your answer to two significant figures and include the appropriate units.
I need help with this problem: A. Calculate the magnitude of the total force. B. When the fourth force is applied to the mass, it is observed that the velocity of the mass stops changing and remains constant. What are the horizontal and vertical components of the fourth force? I've tried adding up all of the velocitys and found Vtotal = 111.8 N with a direction of 26.5 deg. Which is incorrect. Below is the graph we are given.
Projectile Motion and Conservation of Energy Derive a set of equations that perdict the x-position where the ball hits the ground (y=0). This expression should depend only on the measured parameters shown in Figure 1 below: h1, h2, h3, D, L and value change h' 1. Find the magnitude of launching velocity v by using the conservation of total mechancial energy (incorporating the estimate of the energy lost to friction. 2. Find the horizontal velocity vx vertical velocity vy by referring to referring to the geometry of the final section of the track. 3. Find the time the ball is in the air t by considering the vertical motion involving vy and h2 alone. 4. Finally find the rang x Steps 3 and 4 may be combined by using the trajectory equation y(x) obtained by eliminating the time in equations for y(t) and x(t).
A 1.5 kg block and a 2.5 kg block are attached to opposite ends of a light rope. The rope hangs over a solid, frictionless pulley that is 33 cm in diameter and has a mass of 0.75 kg. The pulley can be modeled as a cylinder. When the blocks are released, what is the acceleration of the lighter block? Express your answer in meters per second squared.