Asked by sherri
a 2.5kg poodle slides across a frozen lake at a speed of 6.3m/s. the coefficient of kinetic friction between poodle and ice is 0.088.
show that the poodle will slide 7.3 seconds before coming to rest.
show that the poodle will slide 7.3 seconds before coming to rest.
Answers
Answered by
bobpursley
mg*mu*distance=1/2 m vi^2
but distance= avgvelocity*time=Vi/2*time
mg*mu*vi*time/2= 1/2 m vi^2
time= vi/(g*mu)
but distance= avgvelocity*time=Vi/2*time
mg*mu*vi*time/2= 1/2 m vi^2
time= vi/(g*mu)
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