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a truck was left on th top of a hill without brakes the truck rolls down...


a truck was left on th top of a hill without brakes the truck rolls down the hill for 500ft the friction of coefficient between tyres and the road is 0.02.
the grade hill is 2.5 what is the speed of the velocity after rolling down 500 feet.
a.21.3 miles /hour
b.12.7 miles/hour
c.16.8 miles/hour
d.19.2 miles/hour

engineering   Mechanical-Engineering   
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