Ball Multi
How do you solve a multi-step energy problem?
A ball of mass 5.0 kg is lifted off the floor a distance of 1.7 m.
1. What is the change in the gravitational potential energy of the ball?
2. Now you release the ball from rest, and it falls to the floor. What is the kinetic energy of the ball just before it hits the floor?
3. What is the velocity of ball just before it hits the floor?
1) mgh = 5*9.8*1.7
2) change in energy = 0 because all the potential is converted to kinetic (Gravitational potential energy is conservative). So change in KE = change in PE
3) KE = (mv^2/)/2, plug and chug!
 |
 NEW MULTI COLOR PANEL 24 DIAMETER PLAY POOL BEACH BALL NIP $1.99 (1 Bid) Time Remaining: 12h 10m |
 Over 150 Ball Pit Balls Multi Colors $25.00 (1 Bid) Time Remaining: 2d 6h |
 Larami Super Maxx Thunder Blast Air Pressure Multi Ball Shooter Rifle $119.99 Time Remaining: 2d 15h 12m Buy It Now for only: $169.99 |
 Beach Balls 20 in Multi Colored $2.85 Time Remaining: 3d 14h 36m Buy It Now for only: $2.85 |
 NEW 24 Multi Colored Beach Ball FULL SIZE BEACHBALL $2.45 Time Remaining: 4d 12h 51m |
 36 pcs Intex 59020EP 20 Glossy Panel Multi Color Inflatable Beach Balls $49.99 Time Remaining: 4d 16h 27m Buy It Now for only: $49.99 |
 12 pcs Intex 59020EP 20 Glossy Panel Multi Color Inflatable Beach Balls $19.99 Time Remaining: 4d 16h 28m Buy It Now for only: $19.99 |
 108 pcs Intex 59020EP 20 Glossy Panel Multi Color Inflatable Beach Balls $109.99 Time Remaining: 4d 16h 29m Buy It Now for only: $109.99 |
 NEW 3 MULTI COLOURED FUN SOFT JUGGLING BALLS IN BAGS $3.54 Time Remaining: 5d 2h 28m Buy It Now for only: $3.54 |
 NEW 100 Multi Colored Fun Ballz Ball Pit Toys Toy Kids Pool Play QUICK SHIP $32.95 Time Remaining: 5d 5h 34m Buy It Now for only: $32.95 |
 NIP AQUA LEISURE 20 GLOSSY PANEL BEACH BALL MULTI COLORED AGES 4+ $4.99 Time Remaining: 5d 7h 20m Buy It Now for only: $4.99 |
 NEW MULTI COLOR PANEL 24 DIAMETER PLAY POOL BEACH BALL NIP $2.99 Time Remaining: 5d 18h 34m Buy It Now for only: $2.99 |
 LIGHT UP LED BALL MULTI COLOR METEOR LIGHT NIGHT FUN GLOW BALL NITE IZE $5.95 Time Remaining: 6d 8h 47m Buy It Now for only: $5.95 |
 LIGHT UP MULTI COLOR BALL TENNIS BASEBALL NIGHT FUN CHANGES COLORS COOL $9.50 Time Remaining: 6d 8h 47m Buy It Now for only: $9.50 |
 24in Cathedral Chain Fire Poi with interchangeable multi color LED balls $75.00 Time Remaining: 7d 18h 44m Buy It Now for only: $85.00 |
 Best Rank Toy Factory Ball Pit Mini Bounce House 3 Balls 24 Pack Multi Colore $10.00 Time Remaining: 8d 10h 21m Buy It Now for only: $10.00 |
 5x Hackey Sack Balls NEW 5 multi colored balls $23.99 Time Remaining: 10d 5h 15m Buy It Now for only: $23.99 |
 SupaSplat 2 in 1 Multi Blaster Multiblaster Soft Paint Balls or Water Outdoor $44.34 Time Remaining: 10d 23h 57m Buy It Now for only: $44.34 |
 MULTI COLOR LIGHT UP FRISBEE NIGHT DISC and LED LIGHT UP BALL NITE IZE NEW $21.95 Time Remaining: 11d 15h 2m Buy It Now for only: $21.95 |
 Nite Ize Meteorlight K 9 LED Dog Ball Disc O Multi Colored Light NEW $11.95 Time Remaining: 11d 20h 19m Buy It Now for only: $11.95 |
 Playhut Disneys Pirates Of The Caribbean Multi Action Sports Game Ball Zone New $49.49 Time Remaining: 13d 10h 43m Buy It Now for only: $49.49 |
 3pcs Soft Multi colored JUGGLING BALLS Magic tools $8.84 Time Remaining: 13d 11h 50m Buy It Now for only: $8.84 |
 Guatemalan Hackey Sack Foot Bag Tribal Hacky Ball Guate Kick Bags Multi Colored $2.99 Time Remaining: 15d 5h 28m Buy It Now for only: $2.99 |
 Hackey Sack Guatemalan FootBag Tribal Hacky Ball Guate Kick Bags Multi Colored $2.98 Time Remaining: 15d 5h 28m Buy It Now for only: $2.98 |
 NEW 24 Multi Colored Beach Ball FULL SIZE BEACHBALL $3.45 Time Remaining: 16d 4h 53m Buy It Now for only: $3.45 |
 3 per Set Juggling Balls Circus Juggle Begginer Ball Kit Classic Multi Colored $3.94 Time Remaining: 16d 8h 15m Buy It Now for only: $3.94 |
 Multi color 4 Barney Wonderland Ball $4.30 Time Remaining: 19d 5h 10m Buy It Now for only: $4.30 |
 20CM Fruit Smell Scented Ball Multi Scensory Play Party Bag Fillers $5.14 Time Remaining: 22d 5h 3m Buy It Now for only: $5.14 |
 60 High Bounce Multi colored solid rubber balls 1 2 $14.00 Time Remaining: 24d 6h 37m Buy It Now for only: $14.00 |
 2 Hacky Sack Guatemalan FootBag Tribal Ball Guate Kick Bags Multi Colored $3.98 Time Remaining: 25d 8h 32m Buy It Now for only: $3.98 |
 24 Hacky Sack Guatemalan FootBag Tribal Ball Guate Kick Bags Multi Colored $24.98 Time Remaining: 27d 3h 29m Buy It Now for only: $24.98 |
 NEW Champion Sports Playground Ball Set Multi Size Mu $99.99 Time Remaining: 27d 13h 31m Buy It Now for only: $99.99 |
 32M Inflatable multi color Zorb Ball Zorbing walking ball pvc 100mm $999.00 Time Remaining: 28d 15h 42m Buy It Now for only: $999.00 |
 Pottery Barn Kids Beach Pool Summer Jumbo Ball Multi Stripe Water Sprinkler Fun $29.99 Time Remaining: 29d 11h 5m Buy It Now for only: $29.99 |
 Poolmaster 60Giant Beach Play Ball Multi Print NIB $24.99 Time Remaining: 29d 18h 36m Buy It Now for only: $24.99 |
October 23rd, 2008 in
outdoor toys | tags: 3 ball multiplex, ball, ball multimedia, bocce ball multimedia, koosh ball multiplication, mount, multi, slime ball multiplayer, star magic ball multiply, sumo ball multiplayer, tank ball multiplayer, use, valley