A spring stretches by 15cm when a mass of 300g hangs down from it. If the spring is then stretched an additional 10cm and released. Calculate: a) The spring constant
b) Angular velocity
c) amplitude of oscillation
d) maximum velocity
e) maximum acceleration of the mass
f) The period T and frequency F.

the five characteristics of adolescence are biological growth and development, and undefined status, increased decision making, increased pressure and the search of self.

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.