Asuperball of mass m is dropped vertically from a height, h. if the impact time with the floor is t, what is the average force on the ball

Force = mass * acceleration. Acceleration = deltaV/deltaT, where deltaV is change in velocity, and deltaT is change in time. Deltav = final Velocity because initial velocity is 0. (Final Velocity)^2 = (initial velocity)^2 + 2ad, where a is gravity acceleration of 9.8m/s^2, and d is the height. Final velocity = sqrt(2*9.8*h) = sqrt(19.6h). Therefore, Force = m*sqrt(19.6h)/deltaT.

the simple machine has three main features. they are:

loadfulcrumeffort

fulcrum is the center point or pivot point of the machine. effort is input force/ applied force. load is external force/ output.

the keisha 's machine labels are

x : load

y: fulcrum

z: lever