AP Physics 1mediummcq1 pt
A 0.060 kg tennis ball arrives at 30 m/s and leaves the racket at 40 m/s in the opposite direction. The impulse delivered is
A.4.2 N·s
B.0.60 N·s
C.2.1 N·s
D.8.4 N·s
Explanation
Core Concept
|Δp| = m|vf − vᵢ| = 0.060|−40 − 30| = 0.060(70) = 4.2 N·s.
Correct Answer
A4.2 N·s
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