Work, Power and EnergyHard
Question
A body of mass 10 kg at rest is acted upon simultaneously by two forces 4 N and 3N at right angles to each other. The kinetic energy of the body at the end of 10 sec is :-
Options
A.100 J
B.300 J
C.50 J
D.125 J
Solution
a = 
m/s2
v = u + at = 0 +
10 = 5m/s
so K.E. =
10(5) = 125N
m/s2v = u + at = 0 +
10 = 5m/sso K.E. =
10(5) = 125NCreate a free account to view solution
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