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Instantaneous speed The instantaneous speed is the speed that something has at any instant of time. The speed measured by a radar gun is very close to instantaneous speed. The car speedometer is also very close to the instantaneous speed because the time interval is very small. If you leave your driveway, travel around the block in your car, and then return to your driveway, your instantaneous speed is close to what you are reading on your speedometer. Your average speed, however, is zero because the start and end points are the same so the total distance travelled is zero. Over a very small time interval, .001 seconds, you travel .10 meters in your car. What will the policeman say your speed is when he checks you out with a radar gun? Question options: 100 m / s 10 m / s 1 m / s None of the above
Multiple Concept Example 4 and Interactive LearningWare 6.2 review the concepts that are important in this problem. What is the final speed of the probe
a red car and a green car move toward each other in adjacent lanes and parallel to an x axis. At time t = 0, the red car is at xr = 0 and the green car is at xg = 211 m.
You are kicking a ball in the air that is sitting on the ground. You are told the initial velocity and the distance to a wall of a known height. how fast the ball is going when it reaches the walls position
A runner is practicing on a circular track that is 675 m in circumference. If he runs halfway around the track and stops at the farthest eastern point of the track, what is the distance he traveled
A mass m slides without friction on a 1-dimensional track. The mass is moving from left to right with initial velocity v0. Determine the position where the mass will come to rest
an astronaut on the surface of the moon fires a cannon to launch an experiment package, which leaves the barrel moving horizontally. what time interval does this trip around the moon require
Determine the heat transfer and work for each of the processes. What is the internal energy change for Process 1-2? What is the internal energy change for Process 2-3? (There is an answer posted for the same question, but the answer does not appea..
Find the maximum altitude reached by the rocket.
A 48 kg skier starts from rest at a height of H = 27 m above the end of the ski-jump ramp. As the skier leaves the ramp, his velocity makes an angle of 28° with the horizontal. avoid the effects of air resistance and assume the ramp is frictionles..
atmospheric pressure as measured by a mercury barometer is 99.0 kPa, a patient is fed by intraveneous feeding. How high is the mercury in the barometer
A cylinder of radius 2.59 cm and a sphere of radius 7.97 cm are rolling without slipping along the same floor. The two objects have the same mass. If they are to have the same total kinetic energy, what should the ratio of the cylinder\'s angular spe..
A 0.180 kg baseball, travelling 32.0 m/s, strikes catcher's mitt that recoils 13.0 cm in bringing the ball to rest. What was an average force (in newtons) applied by the ball to the mitt.
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