With the X Axis Horizontal and the Y Axis Vertically

question 27

Multiple Choice

With the x axis horizontal and the y axis vertically upward, the change in the horizontal component of velocity, Δv_x, and the change in the vertical component of velocity, Δv_y, of a projectile are related to the time since leaving the barrel, Δt, as

• A) Δv_x = 0; Δv_y = 0.
• B) Δv_x = gΔt; Δv_y = 0.
• C) Δv_x = 0; Δv_y = gΔt.
• D) Δv_x = 0; Δv_y = −gΔt.
• E) Δv_x = gΔt; Δv_y = −gΔt.

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Definitions:

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