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8 Questions on Algebra-Based Physics I - Problem Set 8 Fall 2006 | PHYS 2010, Assignments of Physics

Tennessee Technological University (TTU)Physics
Prof. David P. Murdock

Material Type: Assignment; Professor: Murdock; Class: Algebra-based Physics I; Subject: PHYS Physics; University: Tennessee Tech University; Term: Fall 2006;

Typology: Assignments

Pre 2010

Uploaded on 07/30/2009

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bg1
Name
Phys 2010 (NSCC), Fall 2006
Problem Set #8
500 g 400 g
1.5 m/s 1.0 m/s
1. On a one-dimensional track, a 500 g cart moves
to the right with speed 1.5m
sand a 400 g cart moves
to the left with speed 1.0m
s. What is the total mo-
mentum of this system?
20 m/s
22 m/s
0.15 kg
2. A pitcher throws a 0.15-kg baseball so that it crosses home plate horizontally
with a speed of 20 m
s. The ball is hit straight back at the pitcher with a final
speed of 22 m
s. (a) What is the impulse (magnitude of the momentum change)
delivered to the ball? (b) Find the average force exerted by the bat on the ball
if the two are in contact for 2.0×10−3s.
1
pf3
pf4

Partial preview of the text

Download 8 Questions on Algebra-Based Physics I - Problem Set 8 Fall 2006 | PHYS 2010 and more Assignments Physics in PDF only on Docsity!

Name

Phys 2010 (NSCC), Fall 2006 Problem Set #

500 g (^) 400 g

  1. On a one-dimensional track, a 500 g cart moves 1.5 m/s (^) 1.0 m/s to the right with speed 1. 5 m s and a 400 g cart moves to the left with speed 1. 0 m s. What is the total mo- mentum of this system?

20 m/s

22 m/s

0.15 kg

  1. A pitcher throws a 0.15-kg baseball so that it crosses home plate horizontally with a speed of 20 m s. The ball is hit straight back at the pitcher with a final speed of 22 m s. (a) What is the impulse (magnitude of the momentum change) delivered to the ball? (b) Find the average force exerted by the bat on the ball if the two are in contact for 2. 0 × 10 −^3 s.

500 g (^) 400 g

1.8 m/s

500 g (^) 400 g

v

  1. A 500 g cart moves to the right on a one-dimensional track with a speed of 1. 8 m s ; it strikes and sticks to a 400 g cart which is at rest. What is the speed of (com- bined) mass after the collision?

4.0 kg 10.0 kg^ 3.0 kg

  1. Three carts of masses 4.0 kg, 10 kg and 3.0 kg move 5.0 m/s 3.0^ m/s^ 4.0^ m/s on a frictionless horizontal track with speeds of 5. 0 m s ,
  2. 0 m s and 4. 0 m s as shown at the right. The carts stick together after colliding. Find the final velocity of the three carts. (Does your answer require that all carts collide and stick together at the same time?)
  1. Find the total kinetic energy of the objects before and after the collision in problem 6. How much kinetic energy was lost?

M M M

3.00 m/s (^) 1.20 m/s

M M^ M

v

  1. A railroad car of mass 2. 00 × 104 kg moving at
  2. 00 m s collides and couples with two coupled railroad cars, each of the same mass as the single car and mov- ing in the same direction at 1. 20 m s. What is the speed of the three coupled cars after the collision? How much kinetic energy is lost in the collision?