A spherical body of mass 2 kg starting from rest acquires a kinetic energy of 10000 J at the end of 5 th second. The force acted on the body is____N.
Text Solution
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CHECK THE SOLUTION.
(40)
x 2 xv 2 =10000
v 2 = 10000
v=100m/s
v = at = ax5 = 100
a = 20m/s 2
F = ma = 2 x 20 = 40 N
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