With the X Axis Horizontal and the Y Axis Vertically

question 49

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:

Ball Joint

A spherical bearing that connects the steering knuckles to the control arms, allowing for smooth and stable movement of the suspension and steering.

MacPherson Strut

A type of automotive suspension system that combines a shock absorber and a coil spring into a single compact assembly.

Steering Knuckle

A pivotal component in a vehicle's steering system to which the wheel assembly is mounted, allowing the wheel to pivot and turn.

Coil Spring

A length of steel wound into a coil shape. The shape of the coil creates a spring action. Coil springs are found in front and rear suspension systems.