Unit 4: Momentum and Collisions
Problem Set B
The following selection of problems are sample problems. Individual student problem sets will vary since numerical information is randomly-generated.
For the following problems:
A 2013 kg pick-up truck moving with a velocity of 22.76 m/s collides with a 896 kg car which is at rest at a stoplight. What is the magnitude of the velocity (in m/s) of these two vehicles after the collision (assuming they stick together and move as a single object)?
Robin Banx is making a get-away in his 2138 kg van. He is moving with a speed of 37 m/s when he loses control and runs into a 1138.2 kg parked car. What is the velocity of the van (in m/s) if these two vehicles stick together and move as a single object after the collision?
Anna Litical and Noah Formula are doing The Cart and the Brick Lab. They drop a brick on a 1.9 kg cart moving at 21.3 cm/s. After the collision, the dropped brick and cart are moving together with a velocity of 10.9 cm/s. Determine the mass (in kg) of the dropped brick.
The detective uses skid marks and other accident scene measurements to determine that the 741 kg Yugo and the 941 kg Volkswagon were traveling with a velocity of 11.3 m/s immediately after the collision. Determine the pre-collision velocity (in m/s) of the Yugo. (The Volkswagon was orginally at rest.)
A 2845 kg truck moving eastward with a speed of 16.3 m/s collides head on with a 1310 kg van moving westward with a speed of 22.8 m/s. Determine the post-collision velocity of the two vehicles (assuming they stick together and move as a single object).
A 72.7 kg fullback moving eastward with a speed of 5.4 m/s collides head on with a 105-kg lineman moving westward with a speed of 7.6 m/s. Determine the post-collision velocity of the two players (assuming they grab each other and move together as a single object). Enter a negative value for a westward velocity and a positive value for an eastward velocity.
A 500-gram physics cart is moving with a speed of 2.4 m/s. John drops a 455.2 gram sand balloon (initially at rest) onto it. Determine the post-collision speed of the physics cart and sand balloon.
A 54.1 kg skater is carrying a 2.5 kg snowball and moving forward with a velocity of 5.9 m/s. The skater throws the snowball forward with a speed of 22.7 m/s. Determine the speed of the skater after hurling the snowball.
A 1.27 kg cannon is at rest. When ignited, it fires a 51.3 g tennis ball forward with a speed of 48.2 m/s. Determine the post-explosion speed (in m/s) of the cannon. (Be careful of units!)
Two billiard balls of equal mass collide while moving in opposite directions. Ball A is moving northward with a speed of 2.63 m/s when it collides with ball B moving southwards at 1.13 m/s. After the collision, ball B is moving northwards with a speed of 2.13 m/s. Determine the post-collision speed of ball A. Enter a negative value for a southward velocity and a positive value for a northward velocity. (Avoid rounding until the final answer is determined.)
A 4.27 kg bowling ball moving eastward with a speed of 3.69 m/s collides head-on with a 1.25-kg bowling pin. The pin is initially at rest but is moving eastward with a speed of 12.55 m/s after the collision. Determine the post-collision speed of the bowling ball.
A small 24.1 gram fish moving with a speed of 36.9 cm/s is engulfed by a large fish which is initially at rest and has 3 times the mass of the little fish. Determine the post-lunch speed (in cm/s) of the big fish (with the small fish in its stomach).
A 1.5-kg cannon is mounted on top of a 2.0-kg cart and loaded with a 52.7 gram ball. The cannon, cart, and ball are moving forward with a speed of 1.27 m/s. The cannon is ignited and launches a 52.7 gram ball forward with a speed of 75 m/s. Determine the post-explosion velocity of the cannon and cart. Enter a negative value for a backward velocity and a positive value for an forward velocity.
A small car moving with a speed of 12.7 km/hr collides with another vehicle (initially at rest) with 2 times the mass. The two vehicles stick together and move as a single unit. Determine their post-collision speed.
Return to: Set B Overview Page || Audio Help Home Page || Set B Sample Problems
Audio Help for Problem: 1 || 2 || 3 || 4 || 5 || 6 || 7 || 8 || 9 || 10 || 11 || 12 || 13 || 14
Retrieve info about: Audio Help || Technical Requirements || Usage Policy || CD-ROM
Return to: Physics 163 Problem Set Page || Physics 163 Home Page