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Home Q & A Board Science-Related Homework Help Physics
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pr_dragon1 pr_dragon1
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A year ago
An object with a mass of 0.75 kg is projected over a horizontal surface with a speed of 2.5 m/s. It then comes to rest after 3.0 s.

(a) How much is the change in kinetic energy of the object.

(b) How much work is done on the object?

(c) How far did the object move before coming to rest?

(d) What is the value of kinetic friction?

(e) What is the coefficient of kinetic friction?
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#1
A year ago
a) The change in kinetic energy of the object is -19.375 J.

b) The work done on the object is 19.375 J.

c) The object moved 7.5 m before coming to rest.

d) The value of kinetic friction is 14.0625 J.

e) The coefficient of kinetic friction is 0.7.
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