Demonstrate and apply the laws of conservation of energy and conservation of momentum in one dimension.
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Q 1/9
Score 0
A 2.0 kg arrow is fired 10 m/s into a stationary 10 kg block of ice as shown below.
The arrow sticks into the block of ice. (Nonelastic collision)
What is the velocity of the arrow & ice together when the collision has occurred? (m1v1 + m2v2= (m1+m2)(v)
120
1.0 m/s
2.0 m/s
1.7 m/s
-1.7 m/s
Q 2/9
Score 0
A 7.0 kg bowling ball traveling at 2.0 m/s collides with a stationary 0.5 kg ball pin in an Elastic collision. The bowling ball leaves the collision with a velocity of 1.5 m/s traveling in the same direction as the ball pin. How fast (velocity) did the bowling pin travel when it was hit? {(m1i v1i +m2i v2i) = m1f v1f + m2f v2f}
120
1.0 m/s
7.0 m/s
3.5 m/s
2.0 m/s
9 questions
Q.
A 2.0 kg arrow is fired 10 m/s into a stationary 10 kg block of ice as shown below.
The arrow sticks into the block of ice. (Nonelastic collision)
What is the velocity of the arrow & ice together when the collision has occurred? (m1v1 + m2v2= (m1+m2)(v)
1
120 sec
112.39.c.6.d
Q.
A 7.0 kg bowling ball traveling at 2.0 m/s collides with a stationary 0.5 kg ball pin in an Elastic collision. The bowling ball leaves the collision with a velocity of 1.5 m/s traveling in the same direction as the ball pin. How fast (velocity) did the bowling pin travel when it was hit? {(m1i v1i +m2i v2i) = m1f v1f + m2f v2f}
2
120 sec
112.39.c.6.d
Q.
A student investigated the different types of collisions using dynamic cars in the laboratory. Which best describes the collision for the data above?
3
120 sec
112.39.c.6.d
Q.
As shown below, a 40 kg student is stationary and alone on a frozen, frictionless pond with nothing but a 5 kg ball in her hands. What can the student do to get her body to start traveling back towards home on the pond?
4
120 sec
112.39.c.6.d
Q.
As shown below, two 100 kg astronauts are floating in space. The first astronaut is moving at 4 m/s while the second is at rest. The two astronauts collide. Both astronauts are now moving at 2 m/s. Based on the above information and images, which of the following statements is true?
5
120 sec
112.39.c.6.d
Q.
A 0.5 kg ball of clay traveling at 5 m/s collides with a stationary 1.5 kg toy car and sticks to it in an Inelastic collision. If momentum is conserved, what is the total momentum of the clay and toy car after they collide? (Law of Conservation of Momentum: pi=pf)
6
120 sec
112.39.c.6.d
Q.
A 5 kg marble traveling at 6 m/s strikes a 10kg marble sitting at rest. The marbles bounce off one another. Which type of collision is this?
7
120 sec
112.39.c.6.d
Q.
A 5 kg marble traveling at 6 m/s strikes a 10kg slab of jello sitting at rest. The marble gets stuck in the jello. Which type of collision is this?
8
120 sec
112.39.c.6.d
Q.
One physics 4 kg cart traveling at 10 m/s to the right & collides with a 5 kg cart sitting at rest. They bounce away afterwards. The 4kg cart is now traveling left at 4m/s, and the 5kg cart travels to the right. What is the velocity of the 5kg cart? (m1v1i + m2v2i) = (m1v1f)+((m2v2f)
