ch04-p113 - 113. Since this problem involves constant...

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(c) The x component of velocity does not change: v x = v 0 = 1.00 × 10 9 cm/s = 1.00 × 10 7 m/s. (d) The y component of the velocity is () ( ) 17 2 9 8 6 1.00 10 cm/s 2.00 10 s 2.00 10 cm/s 2.00 10 m/s. yy va t == × × = × = × 113. Since this problem involves constant downward acceleration of magnitude a , similar to the projectile motion situation, we use the equations of §4-6 as long as we substitute a for g . We adopt the positive direction choices used in the textbook so that equations such as Eq. 4-22 are directly applicable. The initial velocity is horizontal so that
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