Question

A particle moves in a straight line with its retardation

proportional to its displacement 'x'. Change in kinetic energy is proportional to –

• A. x²
• B. e^x
• C. x
• D. log_e x

Answer 1

Answer: (A)

x²

Answer 2

a µ x

W_net = F. x

µ a.x

µ x²

\ DK µ x²