g The uniform crate weighs 400 lb and the man applies a force, P of 100 lb in an effort to cause the crate to move (slide or tip). Determine the coefficient of static friction, us between the crate and the floor and the height, h of the crate for impending motion.

multiply 2kg by latent heat of vap

pretty sure it's false

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.