89 894
Assignments Done
99.2%
Successfully Done
In September 2020

# Answer to Question #27244 in Mechanics | Relativity for Vishal Prasad

Question #27244
A 10 g ball falls vertically on a surface at a speed of 5m/s and rebounds with the same speed. The ball remains in contact with the surface for 0.01 sec.Then what will be the average force exerted by the surface on the ball?
1
2013-03-29T13:36:35-0400
A 10 g ball falls vertically on a surface at a speed of 5m/s andrebounds
with the same speed. The ball remains in contact with the surfacefor 0.01
sec.Then what will be the average force exerted by the surface onthe ball?

Newton&#039;s second laws of motion:
F = dp/dt;
F - force;
p - momentum;
t - time;
For average force:
F = &Delta;p/&Delta;t;
&Delta;p = m*v - (-m*v) = 2m*v;
m - mass of the body;
v - velocity;
&Delta;t = 0.01 sec;
F = 2mv/&Delta;t = (2*0.01kg*5m/s)/(0.01sec) = 10 N;
Answer: the average force equals 10 N.

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!