Aball is dropped from rest at point o . it passes a window with height 3.8 m in time interval tab = 0.02 s. identify the correct pair of equations, which enable us to solve for speed vb . assume down is the positive y direction. use g = 9.8 m/s 2 . k~vk = v is the speed of the ball.

VB − VA = g tAB   &   (VA + VB)/2 = h / tAB

Explanation:

s = h = Displacement

tAB = t = Time taken

VA = u = Initial velocity

VB = v = Final velocity

a = g = Acceleration due to gravity = 9.8 m/s²

Hence, the equations VB − VA = g tAB   &   (VA + VB)/2 = h / tAB will be used

c, 1a hope this

increasing transnational kinetic energy. because the transnational kinetic energy formula consists of only two variables, mass and velocity, increasing one of those properties is the only way to increase an object's transnational kinetic energy. increases to mass and velocity, however, do not have the same impact.