What is the average force on the tennis ball?

galtaash
Messages
1
Reaction score
0
A tennis ball may leave the racket of a top player on the serve with a speed of 62.0 m/s. If the ball's mass is 0.0600 kg and it is in contact with the racket for 0.0200 s, what is the average force on the ball?
 
Physics news on Phys.org
You must deduce the average force from the average acceleration (Newton'S 2 law)

if the ball went from 0 to 62m/s in 0.0200 s, then what is the average accel?

btw - you're in the wrong forum. This is the math forum and yours is a physics question. try "Introductory physics" next time.
 
There are two things I don't understand about this problem. First, when finding the nth root of a number, there should in theory be n solutions. However, the formula produces n+1 roots. Here is how. The first root is simply ##\left(r\right)^{\left(\frac{1}{n}\right)}##. Then you multiply this first root by n additional expressions given by the formula, as you go through k=0,1,...n-1. So you end up with n+1 roots, which cannot be correct. Let me illustrate what I mean. For this...
Back
Top