Question

A body falls from rest , its velocity at the end of first second is ( g= 32 ft/sec)

Answer 1

we know
V= U + at
V is the final speed
U is the initial speed
a is the acceleration
t is time.

here U =0 { as it starts from rest}
t= 1 sec
a=g= 32 ft/ sec^2

so, V= 0+ 32×1 ft/sec
= 32 ft/ sec

thus the speed after 1st second is 32 ft/sec = 9.76 m/ sec { as 1 meter= 3.28 ft}

Answer 2

as for free fall

v=gt given g=32ft/sec and t=1 sec

thus v = 32 x 1

             32 ft/sec