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:

increasing transnational kinetic energy. because the transnational kinetic energy formula consists of only two variables, mass and velocity, increasing one of those properties is the only way to increase an object's transnational kinetic energy. increases to mass and velocity, however, do not have the same impact.