Question

1) A ball falls off a table and reaches
the ground in 1 second . Assuming
g=10m/s2, calculate its speed on
reaching the ground and the height
of the table.
*​

Answer 1

Answer:

v=10m/s

h=5m

Explanation:

u= 0

v = to find

h= to find

g =10m/s^2

t= 1s

according to first equation of motion:

v=u+at

v = 0+ 10×1

= 10m/s

according to third equation of motion:2as=v^2-u^2

2×10×s= 10^2-0^2

20s= 100

s=100/20= 5m

s=h =5m