Acceleration, in physics, is the rate of change of velocity of an object. An object's acceleration is the net result of any and all forces acting on the object, as described by Newton's Second Law.
Answer:
-5.86secs
Explanation:
Using the equation of motion;
vy (final) = vy(initial) + gt
Substitute
0.0 = 57.45 + 9.81t
-57.45 = 9.81t
t = -57.45/9.81
t = -5.86secs
Hence the value of t is -5.86secs
Answer:
A machine in which work input equals work output. energy can be used to do work, work can be used to transfer energy. The change in the kinetic energy of an object is equal to the net work done on the object.
hope this helps
<span>The shortening velocity refers to the speed of the contraction from the muscle shortening while lifting a load. Maximal shortening velocity is only attained with a minimal load. With a light load, the shortening velocity is at its Maximal shortening velocity. When the weight is heavy, the speed in which the muscle lifts the weight decreases in speed at a slower velocity.</span>