K.C.S.E Physics Q & A - MODEL 2014PP1QN18
(a) When a bus goes round a bend on a flat road, it experiences a centripetal force.
State what provides the centripetal force.
(b) State the purpose of banking roads at bends.
(c) A student whirls a stone of mass 0.2 kg tied to a string of length 0.4 m in a vertical plane at a constant speed of 2 revolutions per second.
(Take acceleration due to gravity g as 10 m/s2)
(i) State two forces acting of the stone when it is at the highest point.
(ii) Determine the:
I angular velocity of the stone;
II tension in the string when the stone is at the highest point;
FORM I - PHYSICS SYLLABUS
FORM II - PHYSICS SYLLABUS
FORM III - PHYSICS SYLLABUS
FORM IV - PHYSICS SYLLABUS
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