Skateboarder, starting from rest, rolls down a 13.5 m ramp. when she arrives at the bottom of the ramp her speed is 7.37 m/s. if the ramp is inclined at 29.9 o with respect to the ground, what is the component of her acceleration that is parallel to the ground?

1.7 m/s²

Explanation:

d = length of the ramp = 13.5 m

v₀ = initial speed of the skateboarder = 0 m/s

v = final speed of the skateboarder = 7.37 m/s

a = acceleration

Using the equation

v² = v₀² + 2 a d

7.37² = 0² + 2 a (13.5)

a = 2.01 m/s²

θ = angle of the incline relative to ground = 29.9

a' = Component of acceleration parallel to the ground

Component of acceleration parallel to the ground is given as

a' = a Cosθ

a' = 2.01 Cos29.9

a' = 1.7 m/s²

all of the answers are correct.

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explanation:

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explanation: