Please answer this answer this question with explanation qpqpqppqpqpqoqqiioo - Physics - Laws Of Motion

Question

Please answer this answer this question with explanation
qpqpqppqpqpqoqqiioo

Anshu Agrawal · Accepted Answer

Solution:
Change in linear momentum Δ P = ∫ F d t ΔP=∫Fdt 15 ( vf + u ) = ∫01540 cos ( π10 ) t d t vf= − 4 +4015  [ sin (π / 10)t π / 10   ]015  = − 4 + 40015π (− 1 ) = − 12
5 m / s 
Option A is correct