A child is sitting on a swing. Its minimum and maximum heights from the ground 0.75 m and 2 m respectively, its maximum speed will be
Q: A roller starts from rest at the highest point of the truck 30m above the ground. What speed will it…
A: Using the conservation of energy we will solve the given problem.
Q: A car traveling 3.5 m/s coasts up a hill decreasing its speed to 2.2 m/s. Neglecting losses from…
A: From the conservation of energy:
Q: constant
A: The solution can be given as follows, m is the mass hung on spring g is the acceleration due to…
Q: an
A:
Q: 11. A child swings on a swing so that her body is located 2.4 m above the ground at the highest…
A:
Q: a spring cannon consists of a spring that can launch a ball straight upwards. If the spring is…
A: Here, the total energy of the compressed spring is the converted form or the kinetic energy of the…
Q: ehergy at the top of its swing. What is its kinetic energy at the lowest point on its path? Where is…
A:
Q: 6. The maximum speed of a child on a swing is 4.9 m/s. The child is 0.70 m above the ground at the…
A: The Potential energy at The lowest point A Vlowest =VA= -mgx [ where x= distance from the earth…
Q: A spring is compressed and is attached to a mass at one end Find the speed of the block when x = .2…
A: It is given that
Q: BA force of 4 pounds is required to hold a spring stretched 0.4 feet beyond its natural length. How…
A:
Q: A child, m = 25.0 kg, swings from a rope, L = 6.14 m, which hangs above water, d = 2.7 m, when…
A: building the projectile model:
Q: A 1.00 kg rock at rest is lifted a distance 5.00m above the ground for 3.00 s. What is the Power…
A: mass of rock (m) = 1 kg height (h) = 5 m time taken (t) = 3 seconds
Q: The spring has a constant of 30 N/m and the frictional surface is 0.2 m long with a coefficient of…
A:
Q: If a girl releases a stone of 1 kg from the top of a ceiling, both its potential energy and kinetic…
A: Introduction: Capacity of doing work is nothing but the energy. In nature, there are various forms…
Q: Pendulum: A 1.76 kg mass is attached to a 11.01 m string that is anchored to the ceiling. The mass…
A:
Q: The work required to stretch a certain spring from an elongation of 4.00 cm to an elongation of 5.00…
A:
Q: A vertical spring with a force constant of 26 N/m has a relaxed length of 35 cm. A 200 g mass is…
A: Given that,The force constant :k = 26 N/mThe length of the spring : 35 cmThe mass attached to the…
Q: Masses of 3 kg and 4 kg are hanging at opposite ends of a cord that passes over a frictionless…
A: The objective of the question is to find the speed of the masses when the 4-kg mass has descended…
Q: 20.84 kg chiuld is on a swing from 3.89 m long chains. What is her maximum speed if she swings out a…
A: According to conservation of energy Total energy of the system remains constant.
Q: hrown from a cliff of height h with a A heavy speed v. The stone will hit the ground with maximum…
A: Given, the initial velocity of stone is v Stone is thrown from a height h the initial direction of…
Q: A mass of 0.50 kg hangs from a thread 1.50 m long. The mass is drawn aside a horizontal distance pf…
A: We need to apply energy conservation to solve this question. Here the difference in potential…
Q: If the spring is 1 meter long now and compresses a maximum dis tance of 3O cm, what is the spcing…
A: Answer..
Q: A kid with a mass of 35kg is jumping on the bed .if the bed can be thought of as spring with a…
A:
Q: Suppose you throw a 0.48-kg ball with a speed of 10.8 m/s and at an angle of 28.5° above the…
A:
Q: A 0.80 kg mass is hung from a string of 0.70 meters. The mass hangs at rest. The mass is now lifted…
A: Given, 0.80 kg mass is hung from a string of 0.70 meters so m=0.80 kg mass is now lifted to a…
Q: A 30.0 kg child slides down a 6.50 m high slide. What maximum speed will the child reach?
A: Given Data: Mass of the person (m) = 30.0 kg.Height of the slide (h) = 6.50 m. To Determine: The…
Q: The work required to stretch a certain spring from an elongation of 4.00 cm to an elongation of 5.00…
A: Given data: Elongation of length x1=4.00 cm x2=5.00 cm Energy =11J…
Q: A 3 kg object attached to an ideal massless spring is compressed 1.2 m. If the spring constant is 45…
A:
Q: A box (of negligible size) slides down a smooth parabolic ramp. A stretchy cord (which acts like a…
A:
Q: A 1.6 kg block is placed on a spring scale, causing it to go down by 8 cm. What is the spring…
A: Here two forces are acting the block. 1. Gravitational force downward 2. Spring force upward. At…
Q: A vertical spring stretches by 0.15 m to its new equilibrium length when a 3.0 N weight is attached.…
A: Write the expression for force exerted by the spring.
Q: What is the potential energy of a 3.10kg object at the bottom of a well 12.8 m deep as measured from…
A: We gravitational potential energy E=mgh Here, mass(m) = 3.10 kg Acceleration (g) = 9.8 m/s^2…
Q: A mother is pushing her little son, Mark, on a swing; The highest point reached by the swing is 1.0…
A: highest point reached by swing = 1 m Lowest point reached by swing = 0.3 m Let the mass of swing +…
Q: A block is placed on top of a fixed smooth inclined plane inclined at 30° to horizontal. The length…
A:
Q: A 2-meter chain is placed on a table with heigh 1m , in a way that one end of the chain touches the…
A: SOlution: given thatL =2 m l = 1 m
Q: A student releases the 4kg bob of a 1.92m long pendulum from the position shown. Neglect loss. What…
A:
Q: A person drops a brick from the top of a building. The height of the building is 400.0 m and the…
A: a. the potential energy at the top of the building is PE=mgh=1.7 kg9.8 m/s2400 m=6664 J
Q: What is the maximum vertical height that the bob of a simple pendulum reaches above its lowest…
A: The speed at lowest points are 2.65 m/s & 7.8 ft/s.
Q: To measure the spring constant of a certain spring, a student put a mass of 700 g at the bottom of…
A: Spring force is equal to : F=kX where x is the spring stretches in centimeter(cm) and k…
Q: When a body is brought down from a height H1 to height H2, the Potential Energy of the body…
A: Potential energy is defined as energy possessed by a body due to its position in this surrounding.…
Step by step
Solved in 2 steps
