A railroad car with length L and mass m0 when empty is moving freely on a horizontal track while being loaded with sand from a stationary chute at a rate dm/dt =q . Knowing that the car was approaching the chute at a speed v0 , determine (a) the mass of the car and its load after the car has cleared the chute, (b) the speed of the car at that time.

Q: d and (b) the loss of energy |AE| due to the impact.

A: To find V and energy loss due to impact.

Q: Collision at an Angle To apply conservation of linear momentum in an inelastic collision.  Two cars,…

A: Given: The mass of each car = m kg The one car travelling north has speed = 2v m/s The speed of…

Q: friction and arrives at B, with the rope barely under tension. What was the initial velocity of the…

A:

Q: the normal force between the collar and the rod as the collar passes through B. ength of 5 in. and a…

A:

Q: (s), determine the accelerations of block A and B.

A: Need to determine the acceleration.

Q: 2-lb cylinder is falling from A with a speed 10 ft/s onto the platform. The has an unstretched…

A: weight of the cyinder velocity of cylinder falling unstretched length of the spring original…

Q: ) Initially at rest, A Mitsubishi Pajero and a Toyota Vios are connected by a tow cable. The winch…

A: Given: Mass (Pajero) = 2.5 Mg Mass (Toyota) = 1.25 Mg L = 5m Vrelative = 2 m/s

Q: A locomotive exerts a constant force 200,000 lbs on a set of series-connected railroad cars weighing…

A: Let us draw the FBD  Acceleration of the train…

Q: A toy rocket of mass 1 kg is placed on a frictionless horizontal surface at rest. Then the rocket…

A: Find the speed of rocket at time 0.5 seconds Mass of rocket = 1 kg

Q: An astronaut drops a 5kg rock from a height of 2m on the moon where gravity is g=1.618m/s^2. Later…

A:

Q: A space vehicle has a mass of 500 kg and is moving towards the moon. Calculate the kinetic and…

A:

Q: A 70lb child is standing in a 100lb boat that is initially at rest. If the child jumps horizontally…

A: Given data as per question weight of child =70 lb weight of boat =100 lb speed of child =6 ft/s

Q: A block of mass 0.25 kg travels down a frictionless surface with a velocity of 4.5 m/s to the left…

A:

Q: A car of mass 900 kg is initially travelling at 55 km/h. If the speed increases so that its kinetic…

A: Given:- m=900 kg v1=55km/h=15.2778 m/s K1=175 kJ=175000 J To find:- Final speed, v2

Q: 9 m/s 35° The last segment of the triple jump track-and-field event is the jump, in which the…

A: This problem is based on the impulse momentum theorem.  " According to impulse momentum theorem…

Q: Solve the Problem

A: Draw the free-body diagram of the system.

Q: Determine the initial acceleration (positive if to the right, negative if to the left) of the 13-kg…

A:

Q: s released from rest in the position shown. Cylinder B falls through the hole in the bracket, but…

A: Given data as per question mA = 48kgmB = 12kgmC = 15kgθ = 31°h = 1.2m

Q: A car of mass 900 kg is initially travelling at 55 km/h. If the speed increases so that its kinetic…

A:

Q: Mickey, a daredevil mouse of mass 0.0181 kg, is attempting to become the world's first "mouse…

A: Given the spring constant, mass of ball, compression and horizontal speed.  Required: height h.

Q: Part A The crate, having a weight of 58 lb, is hoisted by the pulley system and motor M. The crate…

A:

Q: A crate with a mass of 155 kg starting from rest, slides down a ramp making an angle of 32 degrees…

A:

Q: A cyclist reaches a speed of 9.1 km / h. Determine the kinetic energy produced by his legs (in…

A: Given data: Speed, v= 9.1km/h=9.1×1000/3600 v=2.53m/s Mass, m=82.1 kg

Q: A 35 000-Mg ocean liner has an initial velocity of 4 km/h. Neglecting the frictional resistance of…

A: Given data Mass of the ocean liner, m = 35 000 Mg. The initial velocity of the ocean liner, vo = 4…

Q: A 5-kg collar slides from A to B along a frictionless vertical rod as shown. The spring attached to…

A: The mass of the collar is m=5 kg. The spring constant is k=30 N/m The undeformed length of the…

Q: An airline employee tosses two suitcases with weights of 30 lb and 40 lb, respectively, onto a 50-lb…

A: Given data as per the question weight of baggage carrier =50 lb weight of suitcases =30 lb and 40 lb…

Q: A stream of water flowing at a rate of 1.2 m³/min and moving with a velocity of magnitude 30 m/s at…

A: To find :  The reaction at point C. Given :  The water flowing rate is m˙=1.2 m3min 1000 mm1 m1…

Q: A 32,000-lb airplane lands on an aircraft carrier and is caught by an arresting cable. The cable is…

A: Using the Pythagorean theorem in the triangle is:

Q: The valve of a cylinder containing 15 kg of compressed gas is opened and the cylinder empties in…

A:

Q: A 0.0102-kg bullet is fired straight up at a falling wooden block that has a mass of 3.47 kg. The…

A:

Q: As shown in the figure below, two masses m, = 5.20 kg and m, which has a mass 75.0% that of m,, are…

A:

Q: The two blocks A and B are originally at rest shown in Figure: Q 6(a). The slope is at an angle of…

A:

Q: A box has a mass of 4 kg and is dropped from a certain height (h), it falls to the floor with a…

A: Kinetic energy of an object is defined as the energy possessed by the object by virtue of its…

Q: A 2,900 lb passenger vehicle, with a front cross-sectional area of 45 ft', is traveling on a road…

A: W=Weight of Passenger Vehicle=2,900 lbR=Radius of Horizontal Curve=1300 ftρ=Density of Air=0.0766…

Q: Clarence was driving his car when he drove into a busy parking lot last Monday morning. Unaware that…

A: Impulse = F * T = M * a * T = M * V/T * T = M * V = 1400 * 12 = 16800 N/s

Q: A steel ball is thrown up with a velocity of 60 m/s from the ground. While coming down, it strikes a…

A: Given, initial velocity, u=60m/s During the rise,…

Q: A stone is thrown up with a velocity of 54 m/s from the ground. While coming down, it strikes a…

A: solved

Q: A 5.40-kg block is set into motion up an inclined plane with an initial speed of v, = 8.40 m/s (see…

A:

Q: 4) A toy wood block of mass m1= 3.25 kg is pushed by hand to compress a spring with a spring…

A: Solving first 3 sub questions Part aAccording to the given conditionThe energy possessed by spring…

Q: A piston of mass m and cross-sectional area A is in equilibrium under the pressure p at the center…

A: Given: Mass of the piston is 'm', cross sectional area is 'A', pressure of the cylinder is 'P'.…

Q: thrust can be approximated by the expression T = An aircraft of mass 240,000kg is powered by a jet…

A: Given mass of the aircraft initial velocity initial time final time

Q: A59.9 kg woman is running toward a 5.34 kg sled, which is initially at rest, witha speed of 6.07…

A: Given: The mass of women, M = 59.9 kg The mass of sled, m = 5.34 kg The initial speed of women, U =…

Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.