Portable Tennis Ball Machine

Brendan B asked:


A tennis player places a 48 kg ball machine on a frictionless surface. The machine fires a 0.057 kg tennis ball horizontally with a velocity of 25 m/s toward the north. What is the final velocity of the machine?

m/s to the south

Holly

hmm asked:


1. A 65.0 kg ice skater moving to the right with a velocity of 2.50m/s throws a 0.150 kg snowball to the right with a velocity of 32.0 m/s relative to the ground.

A) What is the velocity of the ice skater after throwing the snowball? Disregard the friction between the skates and the ice.
B) A second skater initially at rest with a mass of 60.0 kg catches the snowball. what is the velocity of the second skater after catching the snowball in a perfectly inelastic collision?

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2. A tennis player places a 55 kg ball machine on a frictionless surface. The machine fires a 0.057 kg tennis ball horizontally with a velocity of 36 m/s toward the north. What is the final velocity of the machine?

Maria

jeremy b asked:


A tennis player places a 46 kg ball machine on a frictionless surface. The machine fires a 0.057 kg tennis ball horizontally with a velocity of 29 m/s toward the north. What is the final velocity of the machine?

m/s to the south

Ana

msnyder2009 asked:


A tennis player places a 58 kg ball machine on a frictionless surface, as shown below. The machine fires a 0.058 kg tennis ball horizontally with a velocity of 31.4 m/s toward the north. What is the final velocity of the machine?

Heather

badassmutha9000 asked:


A 65.0 kg ice skater moving forward with a velocity of 5.00 m/s throws a 0.240 kg snowball forward with a velocity of 30.0 m/s.
(a) What is the velocity of the ice skater after throwing the snowball? Disregard the friction between the skates and the ice.
(b) A second skater initially at rest with a mass of 60.0 kg catches the snowball. What is the velocity of the second skater after catching the snowball in a perfectly inelastic collision?

A tennis player places a 66 kg ball machine on a frictionless surface. The machine fires a 0.057 kg tennis ball horizontally with a velocity of 27 m/s toward the north. What is the final velocity of the machine?

After being struck by a bowling ball, a 1.5 kg bowling pin moving to the right at 6.5 m/s collides head-on with another 1.5 kg bowling pin initially at rest. Find the final velocity of the second pin in the following situations.
(a) The first pin moves to the right after the collision at 0.8 m/s

Leroy