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Calculate the distance between two objects, 6 000 kg and 6 x 1012 kg respectively, if the magnitude of the
force between them is 3 x 108 N.
Find the gravitational force between the sun with a mass of 2 x 1030 kg and the Earth with a mass of 6
x 1024 kg if the distance between them is 1.4 x 108 km
A box of mass m = 1.0 kg is pushed a distance d = 21 cm up an incline (angle θ = 17°) by a constant horizontal force P = 425 N. The coefficent of kinetic friction between the box and the incline is 0.24. Calculate the work done on the box by the applied force P.
Calculate the work done on the box by the frictional force.
Calculate the work done on the box by the gravitational force.
A cord runs around two massless and frictionless pulleys. A 2.03 kg canister hangs from one pulley. Find the magnitude of the force F you have to apply to the free end of the cord if you are to lift the canister with constant speed.
What is the work done by the weight of the canister?
What is the work you do while lifting the canister 1.10 cm?
Sam's job at the amusement park is to slow down and bring to a stop the boats in the log ride. If a boat with its riders has a mass of 1696 kg and is drifting in at 0.660 m/s, how much work does Sam do to stop it?
A crate of mass 70.0 kg is being pulled across a level floor with a force of 189 N at an angle of 22° above the horizontal. When the crate is moving, the frictional force between the floor and the crate has a magnitude of 123 N. If the crate starts from rest, how fast will it be moving after it has been pulled a distance of 2.50 m?
The radius of curvature is defined as the radius of the approximate circle at a particular point.
Uniform Circular Motion is the motion of the object in a circle with constant speed and as it moves in the circle it constantly changing in direction tangent to the path of the circle in any point.
Tangential acceleration is a measure of how the tangential velocity of a point changes with time. Tangential acceleration is just like linear acceleration, but it’s particular to the tangential direction. It always acts perpendicular to the centripetal acceleration of the object moving in a circle.
The tangential velocity is measured by the angular velocity with respect to time and the radius of the wheel.
