The hammer throw is a track-and-field event in which a 7.3 kg ball (the “hammer”), starting from rest, is whirled around in a circle sev- eral times and released. it then moves upward on the familiar curving path of projectile motion. in one throw, the hammer is given a speed of 29 m/s. for comparison, a .22 caliber bullet has a mass of 2.6 g and, start- ing from rest, exits the barrel of a gun at a speed of 410 m/s. determine the work done to launch the motion of (a) the hammer and (b) the bullet.
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Abumper car with a mass of 250 kg is traveling at a speed of 4 m/s. this bumper car collides and sticks to a second bumper car with a mass of 250 kg, which is initially at rest. what is the final speed of these two bumper cars after the collision, assuming they remain stuck together?
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The hammer throw is a track-and-field event in which a 7.3 kg ball (the “hammer”), starting from res...
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