Question

A ball is rolled off along the edge of a horizontal table with a velocity 4 ms-1 .It hits the ground after 0.4s.Then (g=10ms-1

The height of the table is

Answer 1

please make me brainleist

Answer 2

Answer:

u=4m/s

t=0.4s

h=S

a=g=10m/s^2

From 2nd equation of Kinematics

S=ut+1/2gt^2

S=4×0.4+1/2(10×0.4×0.4)

S=1.6+1/2(1.6)

S=1.6+0.8

S=2.4m