# Physics

Identical twins, each with mass 56.2 kg, are on ice skates and at rest on a frozen lake, which may be taken as frictionless. Twin A is carrying a backpack of mass 12.0 kg. She throws it horizontally at 3.50 m/s to Twin B. Neglecting any gravity effects, what are the subsequent speeds of Twin A and Twin B?
Twin A m/s
Twin B m/s

1. 👍 0
2. 👎 0
3. 👁 122
1. Try using the law of conservation of linear momentum, twice. First after the backpack is thrown, and again after it is caught. Show your work if you need further help.

1. 👍 0
2. 👎 0
posted by drwls
2. 0.25

1. 👍 0
2. 👎 0

## Similar Questions

1. ### physics

Identical twins, each with mass 59.6 kg, are on ice skates and at rest on a frozen lake, which may be taken as frictionless. Twin A is carrying a backpack of mass 12.0 kg. She throws it horizontally at 3.00 m/s to Twin B.

asked by heather on October 19, 2012
2. ### Physics

Identical twins, each with mass 51.0 kg, are on ice skates and at rest on a frozen lake, which may be taken as frictionless. Twin A is carrying a backpack of mass 12.0 kg. She throws it horizontally at 3.00 m/s to Twin B.

asked by Kim on November 8, 2013
3. ### Physics

Identical twins, each with mass 51.0 kg, are on ice skates and at rest on a frozen lake, which may be taken as frictionless. Twin A is carrying a backpack of mass 12.0 kg. She throws it horizontally at 3.00 m/s to Twin B.

asked by Kim on November 8, 2013
4. ### Physic Help!!!!

I need help with ONE PROBLEM but it's really long. Can some please Look at it, and help me out? A Family is at the ice rink, trying out ice skating. Mother has a mass of 65kg, father has a mass of 85kg, and the twins, who are

asked by Anonymous on March 4, 2008
5. ### eced

Dr.tutus used a twin study to determine the influence of heredity on emotionality.if emotional ality is influenced by heredity, he will found the level of emotional is more similar in? Siblings pairs then in identical twins.

asked by woody on September 11, 2015
6. ### Physics

An ice skater of mass m is given a shove on a frozen pond. After the shove she has a speed of 2m/s. Assuming that the only horizontal force that acts on her is a slight frictional force between the blades of the skates and the

asked by Tim on December 9, 2012
7. ### physycs

A hockey player skates down the ice at an angle of 34° to a line crossing the width of the rink. If he skates 14 m, how far has he travelled down the length of the ice toward the goal?

asked by Erick on January 14, 2011
8. ### physics

a person stands in the center of a frozen pond wearing ice skates. his total weight including his skates is 400 n. he pushes on of his 20 n skates forward at 10 m/s. what is his velocity?

asked by Anonymous on June 2, 2013
9. ### physics

a person stands in the center of a frozen pond wearing ice skates. his total weight including his skates is 400 n. he pushes on of his 20 n skates forward at 10 m/s. what is his velocity?

asked by Anonymous on June 2, 2013
10. ### Physics

An ice skater with a mass of 60.0kg is moving at 20.0 m/s coasts to a halt in 2.00×10^2m on a smooth ice surface. What is the coefficient of friction between the ice and the skates?

asked by Billy on December 9, 2016

More Similar Questions