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A 2.65 kg object is moving in a plane, with its x and y coordinates given by x = 2t2 - 3 and y = 2t3 + 6, where x and y are in meters and t is in seconds. Find the magnitude of the net force acting on this object at t = 2.00 s.
A car speeds past a stationary police officer while travelling 115km/h. The officer immediately begins pursuit at a constant acceleration of 10.20 km/h/s (note the mixed units), just as the driver passes the officer.
A bicycle is moving at a speed v = 4.26 m/s. If the radius of the front wheel is 0.450 m, how long does it take for that wheel to make a complete revolution.
Evaluate the magnitude of the apparent weight of a 84 kg astronaut 4500 km from the center of the Earth's Moon in a space vehicle accelerating toward the Moon at 3.1 m/s^2?
Neglect air resistance during the descent. She comes to rest 3.00 m under the surface of the water. Identify the average force that the water exerts on the diver. This force is nonconservative.
At what angle to the surface must a submerged diver in the lake look toward the surface to see the setting sun just along horizon.
with what speed would the arrow leave the bow.
After a tornado, a 0.60g straw was found embedded 3cm into the trunk of a tree. If the average force exerted on the straw by the tree was 90N, what was the speed of the straw when it hit the tree.
A car is traveling at 61.6 km/hr on a flat, concrete highway. If the brakes are applied such that skidding occurs, the kinetic coefficient of friction between the road and tires is 0.802. If anti-lock brakes are properly applied then no skidding o..
A bag of blood with a density of 1050 kg/m^3 is raised about 1.00m higher than the level of a patient's arm. How much greater is blood pressure at the patient's arm than it would be if the bag were at the same height as the arm.
A luge and its rider, with a total mass of 104 kg, emerges from a downhill track onto a horizontal straight track with the initial speed of 53 m/s. suppose they stop with the constant deceleration of 2.30 m/s2.
At a construction site, a 63.0 bucket of concrete hangs from a light (but strong) cable that passes over a light friction-free pulley and is connected to an 83.0 box on the horizontal roof. The cable pulls horizontally on the box, and a 45.0 bag of g..
An electric motor turns a flywheel by a drive belt that joins a pulley on the motor and a pulley that is rigidly attached to the flywheel. The flywheel is a solid disk with a mass of 50.0kg and a diameter of 1.00m.
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