A 300 N child is in a swing that is attached to a pair of ropes 2.00 m long. Find the gravitational potential energy of the child–Earth system relative to the child's lowest position at the following times.   (a) when the ropes are horizontal   (b) when the ropes make a 30.0° angle with the vertical   (c) when the child is at the bottom of the circular arc

Q: An arrangement of two pulleys, as shown in the figure, is used to lift a 77.5-kg crate a distance of…

A: We know, the change in potential energy of a mass m when it is lifted a distance h, is ∆U = mgh…

Q: A man pushes a roller through a distance of 20m. If he applies a force of 20kg weight in a direction…

A: "Since, you have asked multiple questions we can answer only first question according to our…

Q: A horizontal force with a mass of 100kg is being applied to move it at a uniform velocity through a…

A: Given- Mass m= 100 kg Distance x= 20m Time t= 8 seconds

Q: Using the total mass of the elevator and the woman, find the gravitational potential energy at the…

A:

Q: As shown in the figure below, a box of mass m = 66.0 kg (initially at rest) is pushed a distance d =…

A:

Q: A 35.0 kg child climbs a 6.00 m long slide that is inclined 30° with the horizontal. What is the…

A: Given  Mass of child, M = 35 kg  Length of slide, =L = 6.00 m  Angle of inclination of slide = 30°…

Q: A ball of mass 2.12 kg is tied to a string of length 4.15 m as shown in Figure P6.50. The ball is…

A:

Q: The system shown in Figure  is used to lift an object of mass m = 76.0 kg. A constant downward force…

A: Given data: The mass of object is m=76 kg. The object is raised by d=1.8 m.

Q: A 350-N child is in a swing that is attached to ropes 1.75 m long. Find the gravitational potential…

A: Solution

Q: 18.00 m B 9.50 m 5.00 m A rollercoaster of mass 3500kg starts from rest at point A. Calculate its…

A:

Q: As shown in the figure below, two masses m1 = 4.20kg and m2 which has a mass 50.0% that of m1, are…

A:

Q: A 400-N child is in a swing that is attached to a pair of ropes 2.00 m long. Find the gravitational…

A:

Q: Starting from rest, a 4.30-kg block slides 1.90 m down a rough 30.0° incline. The coefficient of…

A: Free body diagram

Q: A block of mass 26 kg rests on a frictionless inclined surface with a slope angle of 37°. A…

A: Given: The horizontal force is 510 N. Mass of block is 26 kg. Angle of slope is 37°. Horizontal…

Q: In the figure, a small block of mass m = 0.032 kg can slide along the frictionless loop- the-loop,…

A: Introduction: When body released from a certain height H, its potential energy goes on decreasing…

Q: A 270-N child is in a swing that is attached to a pair of ropes 1.90 m long. Find the gravitational…

A:

Q: a 1400 kg block of granite is pulled up an incline at a constant speed of 1.34 m/s by a cable and…

A:

Q: A pendulum is made of a small sphere of mass 0.250 kg attached to a lightweight string 1.20 m in…

A: Write the given values using a suitable variable. Here m signifies pendulum mass, l signifies…

Q: The tension in the horizontal towrope pulling a water skier is 240 N while the skier moves due west…

A: given that Force=240NDisplacement=54m Work done=Force×Displacement

Q: A 280-N child is in a swing that is attached to a pair of ropes 1.90 m long. Find the gravitational…

A:

Q: Grains from a hopper falls at a rate of 22.1 kg/s vertically onto a conveyor belt that is moving…

A: Given: dmdt = 22.1 kg/sv =4.75 m/s

Q: A 200-N child is in a swing that is attached to ropes 2.10 m long. Find the gravitational potential…

A: a) When ropes are horizontal, the expression for find gravitational potential energy of the…

Q: Using the work and energy relations, solve for the constant force "P" required for a system…

A: The work energy theorem states that the work done by the system of forces is equal to the change in…

Q: A football player is dragging a 100 kg sled across an Astroturf field at a constant speed of 5 m/s…

A: Mass is sled (m) = 100kg  Velocity (v) = 5m/s Tension in the rope is (F) = 500N

Q: A force of constant magnitude pushes a box up a vertical surface as shown in the figure. The box…

A: Given : mass of the box, m = 5.30 kg Distance, x = 3.70 m coefficient of friction, μ = 0.350   The…

Q: A man of mass 80.0 kg walks down the aisle of an airplane at a speed of 1.00 m/s in the forward…

A: Given, Mass of man (m)= 80kg Speed of man with respect to plane is 1 m/s  Speed of plane with…

Q: A golfer hit a 40.71 gram golf ball from the fairway giving it an initial velocity of 37.3 m/s.  It…

A: Given data:  Mass of golf ball (m)= 40.71 gram = 0.04071 kg Initial velocity (Vi) = 37.3 m/s Final…

Q: A 240-N child is in a swing that is attached to ropes 2.10 m long. Find the gravitational potential…

A: (a)  When the ropes are horizontal, then the gravitational potential energy of the child-Earth…

Q: 300 J 6 m 3 m Calculate the kinetic energy of the stone at the end of the 6-m frictionless inclined…

A:

Q: A man pushes an 46-N crate a distance of 62 m upward along a frictionless slope that makes an angle…

A:

Q: Starting from rest, a 4.3-kg block slides 2.40 m down a rough 30.0° incline. The coefficient of…

A:

Q: A horizontal force of 200 N is applied to a 55-kg cart across a 10-m level surface. If the cart…

A:

Q: A 200-N child is in a swing that is attached to ropes 2.00 m long. Find the gravitational potential…

A: Given: Weight of the child = 200 N Length of the rope = 2 m

Q: The overworked Amazon delivery person is driving up a steep hill with an incline of 29 degrees when…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: As shown in the figure below, two masses m1 = 5.10 kg and m2 which has a mass 60.0% that of m1, are…

A:

Q: You slide a chair across a rough, horizontal surface.  The chair's mass is 18.8 kg.  The force you…

A:

Q: The loaded cab of an elevator has a mass of 2.40 × 10° kg and moves 233. m up the shaft in 17.0 s at…

A: Given mass of a cab = 2.40 × 103 kg ddistance moved = 233 m time = 17 sec speed = constant We have…

Q: The rope and pulley have negligible mass, and the pulley is frictionless. Initially the 6.00-kg…

A: Given:- The mass A is mA = 6.0 kg it is moving downward  The mass B is mB = 8.0 kg is moving to the…

Q: An initially (t = 0) stationary 2.0 kg object accelerates horizontally and uniformly to a speed of…

A: Solution

Q: Ignoring friction, use the ideas of energy conservation to find the distance the cart will travel…

A: Given: mass of the object, m = 500 g = 0.5 kg initial speed of the object, u = 3.676 m/s angle of…