A skateboarder, starting from rest, rolls down a 12.0m ramp. Whenshe arrives at the bottom of the ramp her speed is 7.70 m/s. (a)Determine the magnitu

Wierzycaz

Wierzycaz

Answered question

2021-02-25

A skateboarder, starting from rest, rolls down a 12.0m ramp. Whenshe arrives at the bottom of the ramp her speed is 7.70 m/s. (a)Determine the magnitude of her acceleration, assumed to be constant. (b) If the ramp is inclined at 25.0 degrees with respectto the ground, what is the component of her acceleration that isparallel to the ground?

Answer & Explanation

Arham Warner

Arham Warner

Skilled2021-02-26Added 102 answers

Initial velocity u=0
Final velocity v=7.70m/s
Length of ramp I=12.0m
a) Apply v2u=2aI
a= acceleration down the incline plug the values we get a
b) component of her acceleration that is parallel to the ground =acos25ms
angle of inclined plane is 25 degrees.
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