a force of 5N acts on the body mass2kg for 10sec.if the body is initially at rest,calculate tje kinetic energy acquired by the body
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F = 5 N
m = 2 kg
t = 10 seconds
u = 0
F = m a
F / m = a
5 /2 = a
2.5 m/s² = a
v = u + at
v = 0 + 2.5 x 10
v = 25 m/s
KE = 1/2 x m x v²
= 1/2 x 2 x 25 x 25
= 625 joules
m = 2 kg
t = 10 seconds
u = 0
F = m a
F / m = a
5 /2 = a
2.5 m/s² = a
v = u + at
v = 0 + 2.5 x 10
v = 25 m/s
KE = 1/2 x m x v²
= 1/2 x 2 x 25 x 25
= 625 joules
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