Answer :
(a) For the first 50 m:
h1 = 0.5 x a x t12
50 m = 0.5 x 9.8 m/s2 x t12
t1 = 3.19 s
Time to fall first 50 m = 3.19 s
(b) For the full 100 m:
h2 = 0.5 x a x t22
100 m = 0.5 x 9.8 m/s2 x t22
t2 = 4.52 s
Time to fall second 50 m = t2 - t1 = 1.33 s
Dropped rocks and other objects gain speed rapidly as they fall. Velocity defines the direction in which a body or object is moving. Velocity is primarily a scalar quantity. Velocity is basically a vector quantity. Rate of change of distance.
If our planet loses gravity for even 5 seconds it means the end of life on Earth as we know it. Gravity pulls objects together. The greater the mass of an object, the stronger its gravitational pull. Any submarine you choose for skydiving should be designed with movement in mind. If the weather is cool on the day of skydiving, you should choose pants that cover the entire leg. We recommend wearing sweatpants or sweatpants.
Learn more about A rock here:-https://brainly.com/question/25846908
#SPJ4
