22 22) A projectile is fired from the origin (at y = 0 m) as shown in Figure 3.1

Question

22

22) A projectile is fired from the origin (at y = 0 m) as shown in Figure 3.1. The initial velocity components are v0x = 490 m/s and v0y = 35 m/s.  The projectile reaches maximum height at point P, then it falls and strikes the ground at point Q.  In the figure, the y-component of the velocity of the shell of point P is closest to: 22) ______ A)  zero B)  -70 m/s C)  +40 m/s D)  +70 m/s E)  -40 m/s
A projectile is fired from the origin (at y = 0 m) as shown in Figure 3.1. The initial velocity components are v0x = 490 m/s and v0y = 35 m/s. The projectile reaches maximum height at point P, then it falls and strikes the ground at point Q. In the figure, the y-component of the velocity of the shell of point P is closest to:

Explanation / Answer

ZERO

y-component is zero because at highest point the projectile moves at x direction.

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