Question 167: Laws of Motion

Question

A particle of mass 0.3 kg subjected to a force $F=-kx$ with $k=15$ $N/m$. What will be its initial acceleration if it is released from a point 20 cm away from the origin?

Accepted Answer

Given F = - kx
$\Rightarrow$ F = - 15$ 	imes {{20} \over {100}}$ = - 3 N
F = m.a = 3 N
$\Rightarrow$ a = ${3 \over m}$ = ${3 \over {0.3}}$ = 10 m/s
2

Answer

$15\,\,\,\,m/{s^2}$

Answer

$3\,\,\,m/{s^2}$

Answer

$10\,\,\,m/{s^2}$

Answer

$5\,\,\,m/{s^2}$

Laws of Motion

A particle of mass 0.3 kg subjected to a force F=-kx with k=15 N/m. What will be its initial acceleration if it is released from a point 20 cm away from the origin?

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