Question

A particle of mass 0.3 kg is subjected to a force of ap is equal to minus kx with k is equal to 15 mm what will be its initial acceleration if it is released from a point 20 cm away from the origin

Answer 1

mass of the particle, m = 0.3 kg 

applied force, F = - kx; 

k = 15 N/m 

x = 20 cm = 0.2 m 

Let the acceleration of the particle = a 
Using the Newton’s 2nd law of motion we get, 

F = m* a or, -kx = ma 

or, - 15 * 0.2 = 0.3 * a or, a = -3.0/0.3 

or, a = -10m/s^2 

Answer 2

Answer:

so the answer is 10 m sec square