A boy (30 kg) sitting on his horse whips it. The horse speeds up at an – McqOptions

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1.	A boy (30 kg) sitting on his horse whips it. The horse speeds up at an average acceleration of 2.0 m/s 2.If the boy slides back during the acceleration, what can be said about the coefficient of static friction between the horse and the boy.
A.	0.10
B.	0.20
C.	0.30
D.	0.40
Answer» C. 0.30

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