Answer the following questions about the graphs below

Neither side of the equation may be used because there are too many unknown quantities before, during, and after the collision. Therefore, option (C) is correct.

According to the impulse-momentum theorem, "The change in momentum of an object is equal to the impulse produced by the object. Where the impulse is expressed as the product of average force on the object and the duration of collision (reaction time)".

The expression is given as,

..............................................(1)

Here, is the change in momentum, is the average force and t is the reaction time.

In equation (1),   is the change in momentum which is given as,

Here, m is the mass, v and u are the final and initial velocities of object respectively.

Since, object's mass (m) and velocities are not given. Therefore, left hand side of equation (1) cannot be used to determine the change of object's momentum.Also, right hand side of equation (1) requires the duration of collision (t), which is missing in the problem.

Thus, we can conclude that there are various unknown variables present in the problem, for which neither side of the equation may be used to determine change in momentum of object. Hence, option (C) is correct.

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