()10.200 kg 0.600 kg||8.00 m/s4.00 m/s0.200 kg 0.600 kgfv−==+.This becomes the initial speed v0of the projectile motion of block 1. A variety of choices for the positive axis directions are possible, and we choose left as the +xdirection and down as the +ydirection, in this instance. With the “launch” angle being zero, Eq. 4-21 and Eq. 4-22 (with –greplaced with +g) lead to 000222(4.90m)(4.00 m/s)9.8 m/shxx vtvg−=
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