*48. GO The drawing shows two frictionless inclines that begin at ground level (h = 0 m) and slope upward at the same angle 0. One track is longer than the other, however. Identical blocks are projected up each track with the same initial speed V9. On the longer track the block slides upward until it reaches a maximum height H above the ground. On the shorter track the block slides upward, flies off the end of the track at a height H, above the ground, and then follows the familiar parabolic trajectory of projectile motion. At the highest point of this trajectory, the block is a height H, above the end of the track. The initial total mechanical energy of each block is the same and is all kinetic energy. The initial speed of each block is v, = 7.00 m/s, and each incline slopes upward at an angle of 0 = 50.0°. The block on the shorter track leaves the track at a height of H, = 1.25 m above the ground. Find (a) the height H for the block on the longer track and (b) the total height Hj + H2 for the block on the shorter track. H2 Longer track Shorter track

*48. GO The drawing shows two frictionless inclines that begin at ground level (h = 0 m) and slope upward at the same angle 0. One track is longer than the other, however. Identical blocks are projected up each track with the same initial speed V9. On the longer track the block slides upward until it reaches a maximum height H above the ground. On the shorter track the block slides upward, flies off the end of the track at a height H, above the ground, and then follows the familiar parabolic trajectory of projectile motion. At the highest point of this trajectory, the block is a height H, above the end of the track. The initial total mechanical energy of each block is the same and is all kinetic energy. The initial speed of each block is v, = 7.00 m/s, and each incline slopes upward at an angle of 0 = 50.0°. The block on the shorter track leaves the track at a height of H, = 1.25 m above the ground. Find (a) the height H for the block on the longer track and (b) the total height Hj + H2 for the block on the shorter track. H2 Longer track Shorter track

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter7: Conservation Of Energy

Section: Chapter Questions

Problem 79P: A block of mass 0.500 kg is pushed against a horizontal spring of negligible mass until the spring...

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