Determine the magnitude-direction of the acceleration
The force driven by the wind on the sails of a sail-boat is 390 N north. The water pushed a force of 180 N east. If the boat (comprising the crew) consists of a mass of 270 kg, determine the magnitude and direction of the acceleration?
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of 2.0 kg slides down a plane (incined at 40 degrees with the horizontal) at a constant speed of 5.0 m/s. Determine at what rate is the gravitational force on the block doing work?
Consider the object which moves only all along the positive X axis which is subjected to a constant force pointing in the positive X-direction. Show the work done by the force is the area beneath a force Versus Displacement.
Sarah can bicycle the loop around north part of Lake Washington in 2 hours and 40 minutes. Find how many kilometers long is the loop?
The magnitude of resulting acceleration of the block is 2.0 m/s^2. Determine, at what rate is the force of friction doing work on the block at time t = 3.0 s?
Assume Tower was contained in the cylinder. Determine mass of air in cylinder. Is this more or less than mass of Tower?
The car driver slams on her brakes to avoid colliding with a deer crossing the high-way. Determine what happens to the car's kinetic energy as it comes to the rest?
The bonds pay interest every six months at rate of 2%/year (simple interest). Find how much income will David get from the investment every six months?
A man of 500 N is riding in an elevator. At a certain instant his feet push against the floor with a force greater than 500 N. At this instant, the elevator might be (Select the right Answer):
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