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OpenStudy (anonymous):
a 2000 kg truck is brakes on a stop in 15m from an initial speed of 12 m/s.how much force was required?
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OpenStudy (ghazi):
v^2=U^2+2*a*S...so here final velocity =0 therefore substituing the value will give deceleration = 4.8m/s^2 and force = mass * acceleration therefore =2000*4.8=9600N
OpenStudy (anonymous):
thank you for the fast response sir Ghazi :)
OpenStudy (ghazi):
anytime
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