Better Students Ask More Questions.
A small object, of mass 0.02kg at the top of a building 160 m high, is dropped from...
1 Answer | add yours
Here when the ball falls to the ground two forces will act on the ball. One is the weight of the ball which act downward which drives the ball to ground. In the upward direction air resistance will act on it.
Using Newtons second law of motion;
`darrF = ma`
`0.02xx9.81-0.096 = 0.02a`
`a = 5.01m/s^2`
So the acceleration of the ball is `5.01m/s^2` and it act downward.
Posted by jeew-m on July 28, 2013 at 11:42 AM (Answer #1)
Join to answer this question
Join a community of thousands of dedicated teachers and students.