Ahorizontal block–spring system with the block on a frictionless surface has total mechanical energy e 5 47.0 j and a maximum displacement from equilibrium of 0.240 m. (a) what is the spring constant? (b) what is the kinetic energy of the system at the equilibrium point? (c) if the maximum speed of the block is 3.45 m/s, what is its mass? (d) what is the speed of the block when its displacement is 0.160 m? (e) find the kinetic energy of the block at x 5 0.160 m. (f) find the potential energy stored in the spring when x 5 0.160 m. (g) suppose the same system is released from rest at x 5 0.240 m on a rough surface so that it loses 14.0 j by the time it reaches its first turning point (after passing equilibrium at x 5 0). what is its position at that insta

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.