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show that the acceleration is 7.5 m/s² for a ball that starts from rest and rolls down a ramp and gains a speed of 30 m/s in 4s
11 years ago

Answers

Henry
V = Vo + a*t = 30 m/s
0 + a*4 = 30
a = 30/4 = 7.5 m/s^2.

11 years ago

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