Posted by **Allison** on Sunday, July 10, 2011 at 8:48pm.

A tennis racket is in contact with a 55 kg ball for 0.0050 s changes the ball's velocity from 30 m/s [E] to 40 m/s [W] over a distance of 0.0001 m. how much work is done on the tennis ball by the racket?

- Physics - Work -
**bobpursley**, Sunday, July 10, 2011 at 9:55pm
Force*distance=work

but force*time=mass*changevelocity

or force= 55*(70)/.0050 Notice the 70 as change of velocity, figure that out.

One remark: I would hate to hit a 55kg ball, geepers, that is bigger than some of my high school students.

Put that force into the first work equation.

## Answer This Question

## Related Questions

- physics - a tennis player swings her 1000g racket with a speed of 6.00 m/s. she ...
- physics - A man is playing tennis and a tennis ball (m=1.2 kg) approaches his ...
- Physics - A tennis ball initially moves with a velocity of 27.0 m/s ...
- physics - a 0.055kg tennis ball approaches a tennis racket at 25m/s, stays in ...
- physics - a 200g tennis ball approaches a racket at 20m/s is in contact with the...
- physics - A 200g tennis ball approaches a racket at 20m/s, is in contact with ...
- Physics - A tennis ball is struck and departs from the racket horizontally with ...
- physics - A tennis ball is struck and departs from the racket horizontally with ...
- physics - A tennis ball is struck and departs from the racket horizontally with ...
- physics - A tennis ball is struck and departs from the racket horizontally with ...

More Related Questions