Collision of Objects A and B#

Savannah observes object A, which has mass \({{params.m_a}}\) and velocity \(v_0 \vec{i}\), collide with object B, which has mass 2 \(kg\) and a velocity 1/3 \(v_0 \vec{j}\). Following the collision, object B has a velocity of 1/2 $\(v_0 \vec{i}\)$.

Use the following table as a reference for each variable:

\(Variable\)

Use

\(v_0\)

v

\(\hat{i}\)

i_hat

\(\hat{j}\)

j_hat

Part 1#

Determine the velocity of object A after the collision.

Answer Section#

Please enter in a value in .

Part 2#

Is this collision elastic?

Answer Section#

  • Yes

  • No

Part 3#

Express the change in the kinetic energy in terms of \(v_0\) (use v for \(v_0\) ).

Answer Section#

Part 4#

Suppose a second person observes the same collision. This second observer, however, is moving with a velocity of $\(v\_{2nd} = v_0 \vec{i} - v_0 \vec{j}\)$ m/s relative to Savannah. What is the change in kinetic energy that this second observer measures?

Answer Section#

Attribution#

Problem is licensed under the CC-BY-NC-SA 4.0 license.
The Creative Commons 4.0 license requiring attribution-BY, non-commercial-NC, and share-alike-SA license.