A child with a mass of 30.0 kg is moving down a slide at a playground. The angle the slide makes with the ground is 60.0°, and the coefficient of friction between the child and the slide is 0.250. What is the frictional force on the child? You may want to draw a free-body diagram to help you solve the problem.

d eras and periods

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.