Hi Tim,
Thanks very much for all your help. I think I've managed to safely file this away in my brain. I'm starting out on a science qualification towards a degree eventually. First time I've even attempted science academically for 10 years or so.. I'm rusty.
Thanks Tim,
Ahh so the net force is F2 because W = mass (0.14kg) x gravity (9.8 m s2) is acting on the ball and so is the force exerted by the floor in N.
W = 1.37kg
N = 420
Since 1 N = 1 kg m s-2
Therefore the forces are unbalanced because the floor is exerting more force than...
Oh yes, s-2 would be correct.
The ball weighs 140g or 0.14kg. It is traveling at a constant speed of 36 m s-1 until impact with the floor at point 0.
The change in acceleration is 36 m s-1 minus 0 m s-1 over 0.012 s which means the change in acceleration is 3000 m s-2
Therefore the force...
I'm not entirely sure of my answer, if it's wrong could some one point me in the right direction?
Homework Statement
A 140g ball is falling through the air at 36 meters per second (constant speed) prior to time 0.
The ball impacts the floor at time 0. The ball decelerates until time 0.012...