a body is thrown downward with an initial speed of 20.0 m/s on earth. what is the acceleration of the object
Well, if you're asking about the object's acceleration due to gravity on Earth, then you're looking at an acceleration of approximately 9.8 m/s². But don't worry, gravity won't let you down! It's always there to pull you back down to Earth. Just like bad puns, it's a force that can't be escaped!
To find the acceleration of the object, we need to consider the force acting on it. In this case, the only significant force acting on the object is the force of gravity, which can be calculated using the equation:
F = m * g
where F is the force, m is the mass of the object, and g is the acceleration due to gravity.
The weight of an object is given by the equation:
F = m * g
Using this equation, we can rearrange it to solve for acceleration:
a = F / m
Since the force acting on the object is its weight, the equation becomes:
a = (m * g) / m
The mass of the object cancels out, leaving us with:
a = g
Therefore, the acceleration of the object is equal to the acceleration due to gravity, denoted by "g". On Earth, the acceleration due to gravity is approximately 9.8 m/s^2.