Question 18
Question 18 of 40
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No letter options?
Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
5. Work, energy and power
5.1. Energy conservation

understand the concept of work, and recall and use work done = force × displacement in the direction of the force

3. Dynamics
3.3. Linear momentum and its conser...

recall that, for an elastic collision, total kinetic energy is conserved and the relative speed of approach is equal to the relative speed of separation