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Dynamics (Forces and Newton's Laws of Motion)

Forces and Newton's Laws of Motion

Forces and Newton's Laws of Motion

Dynamics Principles
Using Newton’s Laws

Using Newton’s Laws

Dynamics Principles
A 1-m pry bar is held horizontally and used to open a crate. The tip of the bar, which serves as the fulcrum, is pushed in a distance of 2 cm between the crate lid and the crate. If a 20-N force is applied perpendicularly to the end of the bar, what force
A 70-kg astronaut floats at a distance of 10 m from a 50000-kg spacecraft. What is the force of attraction between the astronaut and spacecraft?
A string with a mass on each end hangs over a frictionless pulley as shown on the right. Calculate the acceleration of the system
A pulley of radius 40 cm and a moment of inertia of .2 kg*m^2. A string is wrapped around the pulley, and a 20 g mass is hung from the string on one side of the pulley. Calculate the magnitude of the angular acceleration of the pulley.
verify newtons second law
The Moon has a mass of 7.4 X 10^22 kg and a radius of 1.7 X 10^6 m. What is the force of gravity experienced by a 70-kg astronaut standing on the lunar surface?
Two masses, A and B, where B is twice the mass of A, are attached together by a long massless rope, and are on opposite sides of a frictionless pulley. The pulley is fixed at the top of a ramp, that is inclined at an angle of 66° to the horizontal. What i
A proposed "space elevator" can lift a 1000-kg payload to an orbit of 150 km above the Earths surface. The radius of the Earth is 6.4 X 10^6 m, and the Earths mass is 6 X 10^24 kg. What is the gravitational potential energy
A four-wheeled, 5-kg baby carriage carries a 5-kg baby. The front wheels are 60 cm from the back wheels and 90 cm from the carriage handle. Assuming that the center of gravity for the baby and the carriages center is equidistant between the front and back
A body of mass 1kg is attracted by the earth with a force , which is equal to ?

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