Abody falls freely from rest. find (a)its accleration (b) the distance it falls in 3s (c) its speed after falling 70m (d) the time requied to reach a speed of 25 m/sec (e) the time taken to fall 300m.

a) acceleration = 9.81[m/s^2], b) distance = 44.1[m], c) v = 37.05[m/s], d) t= 2.54 [s], e) t = 7.82[s]

Explanation:

a) If the object falls freely its acceleration is equal to the gravity acceleration

a = g = 9.81[m/s^2].

b)

Using the following kinematic equation we can find the distance.

Note: The initial velocity is zero because the body was released without velocity.

c)

Using the following kinematic equation we can find the velocity, with the 70[m] distance.

d)

Using the following equation we can find the time for a 25 [m/s] speed.

e)

The time taken to fall 300[m], can be found using the following equation:

okay i have so many questions. but the big one here is: um wt..f is this mess? ?