June 2019 1 18 Report
Sebuah bus dengan massa 2 ton melaju dgn kecepatan 72 km/jam.lalu bus di rem dengan gaya konstan hingga berhenti setelah menempuh jarak 20m dr saat bus di rem.besar gaya pengereman adalah...

A.200N B. 1440N
C.10N D. 20.000N
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