1.

Please explain the answer with reason​

Answer»

Answer:

2) Force is PERPENDICULAR to MOMENTUM.

Explanation:

P= B[sinwt i + coswt J]

Force = dP/dt

Differentiating, using chain rule.

F= B[coswt×w i + -sinwt ×w j]

= Bw[coswt i - sinwtj]

P.F(dot product of P vector and F vector) |P|×|F|×cos THETA= coswt×sinwt - coswt×sinwt = 0

Therefore, Force and Momentum are perpendicular to each other.(theta=90°).



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